Windows 11: A guide to the updates

A Windows launch isn’t the end a process — it’s really just the beginning. Microsoft continually works on improving Windows 11 by fixing bugs, releasing security patches, and occasionally adding new features.

In this story we summarize what you need to know about each update released to the public for the most recent version of Windows 11 — currently version 24H2. For each build, we’ve included the date of its release and a link to Microsoft’s announcement about it. The most recent updates appear first.

The easiest way to install updates is via Windows Update. Not sure how? See “How to handle Windows 10 and 11 updates” for full instructions. Note that Windows 11 version 24H2 is being released as a phased rollout and may not be available to you in Windows Update yet.

If you’re still using Windows 10, see “Windows 10: A guide to the updates.” And if you’re looking for information about Insider Program previews for upcoming feature releases of Windows 11, see “Windows 11 Insider Previews: What’s in the latest build?”

Updates for Windows 11 24H2

KB5048667 (OS Build 26100.2605)

Release date: December 10, 2024

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and December 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

There is one known issue in this build, in which players on Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

(Get more info about KB5048667.)

KB5046740 (OS Build 26100.2454) Preview

Release date: November 21, 2024

This build adds a number of interface features are being rolled out gradually. The system tray shows a shortened date and time, and there’s a new section for touchscreen edge gestures in Settings. When you right-click an app on the Start menu, a jump list will appear (if the app has a jump list). And if you hold Ctrl + Shift down when you click a jump list item, you open the item as an admin.

A variety of bugs have been fixed in this build, including one in which the users page might have caused Task Manager to stop responding when you use the keyboard.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

(Get more info about KB5046740 Preview.)

KB5046617 (OS Build 26100.2314)

Release date: November 12, 2024

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and November 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5046617.)

KB5044384 (OS Build 26100.2161) Preview

Release date: October 24, 2024

In this build, you can now configure the Copilot key on the keyboard. On new devices, the key opens the Copilot app. If you sign in to your account using a Microsoft Entra ID, the key opens the M365 app. You can make the key open a different app or open Search. To do this, go to Settings > Personalization > Text input. 

In addition, a variety of features are being rolled out gradually, including one in which you can stop the suggestions to turn off notifications from certain apps. Select the ellipsis (…) in the notification and turn it off. You can also go to Settings > System > Notifications and turn it off from there. 

A variety of bugs have also been fixed, including one in which you were unable to view some parts of the UI when you run certain apps.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

(Get more info about KB5044384 Preview.)

Windows 11 24H2 KB5044284 (OS Build 26100.2033)

Release date: October 8, 2024

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and October 2024 Security Updates.

This build also fixes one bug in which the Remote Desktop Gateway Service stopped responding when a service used remote procedure calls (RPC) over HTTP.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5044284.)

Windows 11, version 24H2

Release date: October 1, 2024

The Windows 11 24H2 update (also called Windows 11 2024 Update) is now being gradually rolled out. It may take some months before it reaches everyone, so you may not have it yet. As with previous annual Windows updates, it’s not a major upgrade, but does include a variety of minor new features.

Following are the highlights for end users:

• File Explorer gets several new features, including support for TAR and 7z compression and the ability to add metadata to PNG files, so you can add information to your images.
• New privacy settings for Wi-Fi networks give more control over which applications can access the list of nearby Wi-Fi networks. Limiting the applications that can access that list can make it more difficult for others to pinpoint your location.
• You can now join Wi-Fi networks by scanning QR codes, and create a QR code to allow others to share your mobile hotspot with others.
• A new Energy Saver mode reduces electric consumption on desktop PCs as well as laptops, helping you reduce your carbon footprint and improving laptop battery life. It reduces energy consumption from background tasks as well as those running in the foreground.
• Copilot now runs as a separate app, and is movable and resizable like any other app, rather than running in a sidebar panel.
• Copilot+ PCs get several new features, including Cocreator in Paint, which uses AI to generate images; enhancing video calls with AI-powered noise cancellation and improved lighting; and what Microsoft calls Auto Super Resolution, which gives games higher resolution and offers smoother gameplay.

For IT admins, highlights include:

• Policy improvements and automatic account management for Windows Local Administrator Password Solution (LAPS)
• Personal Data Encryption (PDE) for users’ Documents, Desktop, and Pictures folders
• App Control for Business
• Windows protected print mode
• Local Security Authority (LSA) protection
• Support for Wi-Fi 7
• SHA-3 support

See this blog post from Microsoft’s Harjit Dhaliwal for more information.

Prerelease updates for Windows 11 24H2

KB5043178 (OS Build 26100.1882) Preview

Release date: September 30, 2024

This build for Windows 11 24H2 offers a variety of new features, some of which will show up immediately and some of which are being rolled out gradually. Among the features that will roll out gradually is a new energy recommendation to turn off high dynamic range (HDR). This helps to conserve energy on devices that have HDR displays. Go to Settings > Power & battery > Energy recommendations.

Among the features available immediately is one that lets you manage your Copilot Pro subscription in Settings. Sign in to your Microsoft account and go to Settings > Accounts.

Several bugs have been fixed, including one in which Task Manager stopped responding when you switched from a high-contrast theme to a normal theme.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

(Get more info about KB5043178 Preview.)

KB5043080 (OS Build 26100.1742)

Release date: September 10, 2024

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and September 2024 Security Updates.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5043080.)

KB5041865 (OS Build 26100.1591) Preview

Release date: August 27, 2024

This build for Windows 11 24H2 offers a variety of new features that are being rolled out gradually, including one in which you can share content to your Android device from the Windows Share window.

Several bugs have been fixed, including one in which a deadlock occurred in the domain controller when it started up in the DNS client.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

(Get more info about KB5041865 Preview.)

KB5041571 (OS Build 26100.1457)

Release date: August 13, 2024

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and August 2024 Security Updates. It also fixes several bugs, including one in which the “Use my Windows user account” checkbox was not available on the lock screen to connect to Wi-Fi.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5041571.)

KB5040529 (OS Build 26100.1301) Preview

Release date: July 30, 2024

This build for Windows 11 24H2 offers a variety of new features that are being rolled out gradually, including the new account manager being on the Start menu. When you use a Microsoft account to sign in to Windows, you will get a glance at your account benefits. This feature also makes it easy to manage your account settings.

One feature is being rolled out immediately, in which Widgets icons on the taskbar are no longer pixelated or fuzzy. You also get a larger set of animated icons.

Several bugs have been fixed, including one in which devices that use certain WLAN cards stopped responding.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

(Get more info about KB5040529 Preview.)

KB5040435 (OS Build 26100.1150)

Release date: July 9, 2024

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and July 2024 Security Updates. It also This update adds PCR 4 to PCR 7 and 11 for the default Secure Boot validation profile.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5040435.)

KB50439304 (OS Build 26100.1000) Preview

Release date: June 28, 2024

This build fixes a variety of bugs, including one in which Windows Defender Application Control (WDAC) failed to verify the policies of some apps.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

(Get more info about KB5041865 Preview.)

KB5039239 (OS Build 26100.863)

Release date: June 15, 2024

This build pins Copilot to the taskbar and makes it behave like a traditional app that can be resized and moved. The build also fixes several bugs, including one in which the volume of Bluetooth devices were automatically set to maximum when you connected to them.

There is one known issue in this build, in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows.

(Get more info about KB5039239.)

Updates to Windows 11 version 23H2

KB5043145 (OS Builds 22621.4249 and 22631.4249) Preview

Release date: September 24, 2024

This build, for both Windows 11 22H2 and 23H2, offers a variety of new features and bug fixes, some of which will show up immediately, and some of which are being rolled out gradually. Among the features that will roll out gradually is the ability to share local files directly from the search results that appear in the Search box on the taskbar. Among the bug fixes that roll out immediately are one that addresses an issue in which Task Manager stopped responding when you switched from a high contrast theme to a normal theme.

(Get more info about KB5043145 Preview.)

KB5043076 (OS Builds 22621.4169 and 22631.4169)

Release date: September 10, 2024

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and September 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

There is one known issue in this build, in which you might face issues with booting Linux if you have enabled the dual-boot setup for Windows and Linux in your device. Your device might fail to boot Linux and show the error message “Verifying shim SBAT data failed: Security Policy Violation. Something has gone seriously wrong: SBAT self-check failed: Security Policy Violation.”

(Get more info about KB5043076.)

KB5041587 (OS Builds 22621.4112 and 22631.4112) Preview

Release date: August 27, 2024

This build, for both Windows 11 22H2 and 23H2, includes the ability to share content to your Android device from the Windows Share window. To do it, must pair your Android device to your Windows PC and use the Link to Windows app on your Android device and Phone Link on your PC.

In Voice Access, you can also now dictate the characters that you spell at a faster speed, and you have more editing options for the commands that select, delete, and move within text. The build also fixes several bugs, including one in which when you pressed Ctrl + F, sometimes the search did not start.

The new features and bug fixes will roll out to users gradually.

(Get more info about KB5041587 Preview.)

KB5041585 (OS Builds 22621.4037 and 22631.4037)

Release date: August 13, 2024

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and August 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5041585.)

KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview

Release date: July 25, 2024

This build, for both Windows 11 22H2 and 23H2, offers a variety of new features and bug fixes, some of which will show up immediately and some of which are being rolled out gradually. Among the features that will roll out gradually is pinning apps to the taskbar by dragging them from the Pinned section of the Start menu, and right-clicking a tab in File Explorer to duplicate it. Among the bug fixes that will roll out gradually is a memory leak that occurred when you interacted with archive folders.

Among the bugs fixed immediately is one in which in Group Policy Preferences you could not choose a group from the target domain for ILT or choose an account from Local Users and Groups.

(Get more info about KB5040527 Preview.)

KB5040442 (OS Builds 22621.3880 and 22631.3880)

Release date: July 9, 2024

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and July 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

There is one known issue in this update, in which enterprise users may face issues while upgrading from Windows Pro to a valid Windows Enterprise subscription. OS upgrade operations may fail, and this might be shown in the LicenseAcquisition scheduled task in Task Scheduler > Task Scheduler Library > Microsoft > Windows > Subscription as ‘Access denied error (error code 0x80070005)’ under ‘Last Run Result.’

(Get more info about KB5040442.)

KB5039302 (OS Builds 22621.3810 and 22631.3810) Preview

Release date: June 25, 2024

This build, for both Windows 11 22H2 and 23H2, offers a variety of new features and bug fixes, some of which will show up immediately and some of which are being rolled out gradually. Among the bug fixes that will show up immediately is one that addresses an issue in which ejecting USB devices using the Safely Remove Hardware option failed when Task Manager was open.

Among the features that will roll out gradually is a new account manager on the Start menu that makes it easier to manage your account settings and lets you see your account benefits. Also being rolled out gradually is support for Emoji 15.1.

(Get more info about KB5039302 Preview.)

KB5039212 (OS Builds 22621.3737 and 22631.3737)

Release date: June 11, 2024

This update fixes a variety of bugs, including one in which the taskbar might briefly glitch, not respond, or disappear and reappear.

In addition, it has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and June 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5039212.)

KB5037853 (OS Builds 22621.3672 and 22631.3672) Preview

Release date: May 29, 2024

This build introduces a variety of minor feature updates, including one that lets you use your mouse to drag files between breadcrumbs in the File Explorer address bar and another that lets you create QR codes for webpage URLs and cloud files from the Windows share window.

The build also fixes a variety of bugs, including one in which File Explorer stopped responding when you swiped from a screen edge after turning off edge swiping, and another in which handwriting panels and touch keyboards did not appear when you used a pen.

(Get more info about KB5037853 Preview.)

KB5037771 (OS Builds 22621.3593 and 22631.3593)

Release date: May 14, 2024

This update fixes a bug that caused VPN connections to fail, and another in which Server Message Block (SMB) clients failed to make SMB Multichannel connections, making file transfers are slow.

In addition, it has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and May 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5037771.)

KB506980 (OS Builds 22621.3527 and 22631.3527) Preview

Release date: April 23, 2024

In this build, the Recommended section of the Start menu will show some Microsoft Store apps. In addition, widgets icons on the taskbar are no longer pixelated or fuzzy, and Windows widgets on the lockscreen are more reliable.

The build also fixes a variety of bugs, including one in which Windows Local Administrator Password Solution’s Post Authentication Actions (PAAs) did not occur at the end of the grace period. Instead, they occurred at restart.

There is one known issue in this build, in which you might be unable to change your user account profile picture.

(Get more info about KB5036980 Preview.)

KB5036893 (OS Builds 22621.3447 and 22631.3447)

Release date: April 9, 2024

This build offers a wide variety of minor new features, including dedicated mode for Windows 365 Boot. When you sign in on your company-owned device, you also are signed into to your Windows 365 Cloud PC. This uses passwordless authentication, like Windows Hello for Business.

The update also adds suggestions to Snap Layouts. When you hover over the minimize or maximize button of an app to open the layout box, app icons will display various layout options. Use them to help you to choose the best layout option.

In addition, the update changes the apps that appear in the Windows share window. The account you use to sign in affects the apps that are in “Share using.” For example, if you use a Microsoft account (MSA) to sign in, you will see Microsoft Teams (free). When you use a Microsoft Entra ID account (formerly Azure Active Directory) to sign in, your Microsoft Teams (work or school) contacts show instead.

This build also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and April 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5036893.)

Windows 11 KB5035942 (OS Builds 22621.3374 and 22631.3374) Preview

Release date: March 26, 2024

In addition, in Windows Hello for Business admins can now use mobile device management to turn off the prompt that appears when users sign in to an Entra-joined machine. To do it, turn on the “DisablePostLogonProvisioning” policy setting. After a user signs in, provisioning is off for Windows 10 and Windows 11 devices.

There is one known issue in this build, in which Windows devices using more than one monitor might experience issues with desktop icons moving unexpectedly between monitors or other icon alignment issues when attempting to use Copilot in Windows.

(Get more info about KB5035942 Preview.)

KB5035853 (OS Builds 22621.3296 and 22631.3296)

Release date: March 12, 2024

This build fixes a bug that affected the February 2024 security and preview updates. They might not have installed, and your device might shave stopped responding at 96% with the error code “0x800F0922” and the error message, “Something did not go as planned. No need to worry – undoing changes. Please keep your computer on.”

This build also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and March 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5035853.)

KB5034848 (OS Builds 22621.3235 and 22631.3235) Preview

Release date: February 29, 2024

In this build, you can now use the Snipping Tool on your PC to edit the most recent photos and screenshots from your Android device. You will get an instant notification on your PC when your Android device captures a new photo or screenshot. To turn this on, go to Settings > Bluetooth & devices > Mobile devices. Choose Manage devices and allow your PC to access your Android device.

The build also adds support for the USB 80Gbps standard, the next generation of USB4 that has twice the bandwidth of USB 40Gbps. To use USB 80Gbps, you must have a compatible PC and USB4 or Thunderbolt peripheral.

The build also fixes several bugs, including one in which the Windows Settings Home page randomly stopped responding when you went to the page, and another in which devices failed to make the automatic switch from cellular to Wi-Fi when they could use Wi-Fi.

There is one known issue in this build, in which Windows 11 devices attempting to install the February 2024 security update, released February 13, 2024 (KB5034765), might face installation failures and the system might stop responding at 96%.

(Get more info about KB5034848 Preview.)

KB5034765 (OS Builds 22621.3155 and 22631.3155)

Release date: February 13, 2023

In this build, the Copilot in Windows icon now appears on the right side of the system tray on the taskbar. Also, the display of “Show desktop” at the rightmost corner of the taskbar will be off by default. To turn it back on, go to Settings > Personalization > Taskbar. You can also right-click the taskbar and choose Taskbar settings. These changes will be gradually rolled out.

This build also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and February 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5034765.)

KB5034204 (OS Builds 22621.3085 and 22631.3085) Preview

Release date: January 23, 2024

This build fixes a variety of bugs, including one that stopped search from working on the Start menu for some users because of a deadlock, and another that that caused devices to intermittently stop responding after you installed a print support app.

There is one known issue in this build, in which Windows devices using more than one monitor might experience issues with desktop icons moving unexpectedly between monitors or other icon alignment issues when attempting to use Copilot in Windows (in preview).

(Get more info about KB5034204 Preview.)

KB5034123 (OS Builds 22621.3007 and 22631.3007)

Release date: January 9, 2024

This build fixes several bugs, including one in which devices shut down after 60 seconds when you used a smart card to authenticate on a remote system, and another in which some Wi-Fi adapters could not connect to some networks, particularly those that use 802.1x to authenticate.

It also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and January 2024 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

There are three known issues in this build, including one affecting ID admins, in which using the FixedDrivesEncryptionType or SystemDrivesEncryptionType policy settings in the BitLocker configuration service provider (CSP) node in mobile device management apps might incorrectly show a 65000 error in the “Require Device Encryption” setting for some devices in your environment. To mitigate the issue in Microsoft Intune, you can set the “Enforce drive encryption type on operating system drives” or “Enforce drive encryption on fixed drives” policies to not configured.

(Get more info about KB5034123.)

KB5033375 (OS Builds 22621.2861 and 22631.2861)

Release date: December 12, 2023

This build has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and December 2023 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

There are four known issues in this build, including one which affects ID admins, in which using the FixedDrivesEncryptionType or SystemDrivesEncryptionType policy settings in the BitLocker configuration service provider (CSP) node in mobile device management (MDM) apps might incorrectly show a 65000 error in the “Require Device Encryption” setting for some devices in your environment. To mitigate the issue in Microsoft Intune, you can set the “Enforce drive encryption type on operating system drives” or “Enforce drive encryption on fixed drives” policies to not configured.

(Get more info about KB5033375.)

KB5032288 (OS Builds 22621.2792 and 22631.2792) Preview

Release date: December 4, 2023

In this update, Copilot in Windows (in preview) can be used across multiple displays, and it can be used with Alt+Tab. When you press Alt+Tab, the thumbnail preview for Copilot in Windows appears among other thumbnail previews of open windows. You can switch between them using the Tab keystroke. This is available to a small audience initially and will deploy more broadly in the months that follow.

The update also fixes a wide range of bugs, including one in which the Copilot icon did not show as being as active when it’s open on the taskbar.

There are four known issues in this update, one applicable to IT admins, in which using the FixedDrivesEncryptionType or SystemDrivesEncryptionType policy settings in the BitLocker configuration service provider (CSP) node in mobile device management (MDM) apps might incorrectly show a 65000 error in the “Require Device Encryption” setting for some devices in your environment.

(Get more info about KB5032288 Preview.)

KB5032190 (OS Builds 22621.2715 and 22631.2715)

Release date: November 14, 2023

This build introduces a preview of the Copilot for Windows AI assistant and a File Explorer with a new interface that includes new files displayed as a carousel, and that recognizes local and cloud folders. It also introduces the Windows Backup app that can be used to quickly get your current PC backed up and ready to move to a new PC. In addition, there are many other new features and interface changes throughout Windows, including for Settings, Windows Spotlight, security graphics, voice access, Narrator, and others.

It also includes a wide variety of security updates. For details, see Microsoft’s Security Update Guide and November 2023 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

There are three known issues in this build, including one that affects ID admins in which using the FixedDrivesEncryptionType or SystemDrivesEncryptionType policy settings in the BitLocker configuration service provider (CSP) node in MDM apps might incorrectly show a 65000 error in the “Require Device Encryption” setting for some devices in your environment. To mitigate the issue in Microsoft Intune, you can set the “Enforce drive encryption type on operating system drives” or “Enforce drive encryption on fixed drives” policies to not configured.

(Get more info about KB5032190.)

KB5031455 (OS Builds 22621.2506 and 22631.2506) Preview

Release date: Oct. 31, 2023

This update introduces a preview of the Copilot for Windows AI assistant and File Explorer with a new interface that includes new files displayed as a carousel, and that recognizes local and cloud folders. It also includes minor interface changes to many parts of the operating system, including taskbar, system tray, security notifications, and more.

There is one known issue, which applies to IT admins: using the FixedDrivesEncryptionType or SystemDrivesEncryptionType policy settings in the BitLocker configuration service provider (CSP) node in mobile device management (MDM) apps might incorrectly show a 65000 error in the “Require Device Encryption” setting for some devices in your environment.

(Get more info about KB5031455 Preview.)

KB5031455 (OS Build 22621.2506) Preview

Release date: Oct. 26, 2023

This build introduces a preview of the Copilot for Windows AI assistant and a File Explorer with a new interface that includes new files displayed as a carousel, and that recognizes local and cloud folders. It also introduces the Windows Backup app that can be used to quickly get your current PC backed up and ready to move to a new PC.

There is one known issue in this build that applies to IT admins: using the FixedDrivesEncryptionType or SystemDrivesEncryptionType policy settings in the BitLocker configuration service provider (CSP) node in mobile device management (MDM) apps might incorrectly show a 65000 error in the “Require Device Encryption” setting for some devices in your environment.

(Get more info about KB5031455 Preview.)

KB5031354 (OS Build 22621.2428)

Release date: October 10, 2023

This build includes a wide variety of security updates. For details, see Microsoft’s Security Update Guide and October 2023 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5031354.)

KB5030310 (OS Build 22621.2361) Preview

Release date: September 26, 2023

This update adds websites to the Recommended section of the Start menu. These websites come from your browsing history. You can remove any website URL from the Recommended section using the shortcut menu. To turn off the feature, go to Settings > Personalization > Start.

It also fixes a variety of bugs, including one in which the search box tooltip did not appear in the correct position, and another in which the search button disappeared when you interacted with the search flyout box.

In addition, if you want to use a variety of new features, such as the AI-driven Copilot for Windows and improvements to File Manager, Paint, and other apps, go to Settings > Windows Update, toggle on “Get the latest updates as soon as they’re available,” and then restart your PC. For more details, see Microsoft’s blog post.

(Get more info about KB5030310 Preview.)

KB5030219 (OS Build 22621.2283)

Release date: September 12, 2023

This build removes a blank menu item from the Sticky Keys menu and includes a variety of security updates. For details, see Microsoft’s Security Update Guide and September 2023 Security Updates.

What IT needs to know: Because this is a security update, it should be applied relatively soon. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update.

(Get more info about KB5030219.)