Windows 11: A guide to the updates

December 9, 2025 Yanac

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 25H2 — over the past year. 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 25H2 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 25H2 and 24H2

KB5072033 (OS Builds 26200.7462 and 26100.7462)

Release date: December 9, 2025

This build fixes several bugs, including one in which File Explorer briefly flashed white when you navigated between pages.

It also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and December 2025 Security Updates.

It has one known issue, in which the password icon might not be visible in the sign-in options on the lock screen. If you hover over the space where the icon should appear, you’ll see that the password button is still available. Select this placeholder to open the password text box and enter your password. After entering your password, you can sign in normally. People using Windows Home or Pro editions on personal devices are very unlikely to experience this issue — it primarily affects enterprise or managed IT environments.

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 KB5072033.)

KB5070311 (OS Builds 26200.7309 and 26100.7309) Preview

Release date: December 1, 2025

A variety of new features are being gradually rolled out in this build, including several for Copilot+ PCs. The Click to Do context menu in Copilot+ PCs now has a streamlined design that makes it easier to access frequently used actions such as Copy, Save, Share, and Open. In Copilot+ PCs you can now also use Windows Studio Effects, which provide AI-powered camera enhancements, on an additional camera such as a USB webcam or your laptop’s built-in rear camera.

New features being rolled out gradually to all Windows 11 PCs include a simplified File Explorer context menu for easier navigation. Common actions like Share, Copy, and Move now appear in a single organized menu.

A variety of bugs have been fixed for all PCs, including one in which the Local Security Authority Subsystem Service (LSASS) could become unstable due to an access violation.

There are two known issues in this build, one in which when opening File Explorer in dark mode, the window might briefly display a blank white screen before loading files and folders. In addition, the password icon is missing or invisible in the lockscreen sign-in options on some PCs. (Here’s a workaround for the latter bug.)

Get more info about KB5070311 Preview.)

KB5068861 (OS Builds 26200.7171 and 26100.7171)

Release date: November 11, 2025

This Patch Tuesday build fixes several bugs, including one in which closing Task Manager with the Close button didn’t fully end the process, leaving background instances that could slow performance over time.

It also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and November 2025 Security Updates.

(Get more info about KB5068861.)

KB5067036 (OS Builds 26200.7019 and 26100.7019) Preview

Release date: October 28, 2025

A variety of new features are being gradually rolled out in this build, including several for Click to Do on Copilot+ PCs — notably a streamlined interaction between Click to Do and Copilot. You can now type a custom prompt directly into the text box, which sends your prompt and selected on-screen content to Copilot. Suggested prompts appear below the text box and are available for text selections in English, Spanish, and French.

New features are being gradually rolled out for all Windows 11 PCs as well, including a redesigned Start menu, which includes scrollable “All” section and category and grid views. The menu now adapts to your screen size.

A variety of bugs have been fixed, including one in which text sometimes didn’t render correctly when editing content within a multiline text box in certain apps.

Get more info about KB5067036 Preview.)

KB5070773 (OS Builds 26200.6901 and 26100.6901) Out-of-band

Release date: October 20, 2025

This build fixes one bug, in which USB devices, such as keyboards and mice, did not function in the Windows Recovery Environment (WinRE). This issue prevented navigation of any of the recovery options within WinRE.

This build has one known issue: some digital TV and Blu-ray/DVD apps might not play protected content as expected after installing the August 29, 2025, Windows non-security preview update (KB5064081) or later updates. Apps that use Enhanced Video Renderer with HDCP enforcement or Digital Rights Management (DRM) for digital audio might show copyright protection errors, frequent playback interruptions, unexpected stops, or black screens. Streaming services are not affected.

(Get more info about KB5070773 Out-of-band.)

KB5066791 (OS Builds 19044.6456 and 19045.6456)

Release date: October 14, 2025

This build fixes several bugs, including one that caused the print preview screen to stop responding in Chromium-based browsers.

It also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and October 2025 Security Updates.

(Get more info about KB5066791.)

KB5065789 (OS Builds 26200.6725 and 26100.6725) Preview

Release date: September 29, 2025

This build gradually rolls out a wide variety of new features, including one in which you can use AI actions in File Explorer to edit images or summarize documents. To do it, right-click (or press Shift + F10 on the keyboard) on the file and select AI actions.

Several bugs have also been fixed, including one in which you might not have been able to connect to shared files and folders if you were using the Server Message Block (SMB) v1 protocol on NetBIOS over TCP/IP NetBIOS (NetBT).

(Get more info about KB5065789 Preview.)

Windows 11 25H2

At the end of September, Microsoft upgraded Windows 11 from version 24H2 to 25H2, in a slow rollout that could take months to complete. Typically in the past, Microsoft would introduce new features in a once-a-year update like this. That’s not the case with 25H2, though.

Microsoft has been introducing new features in smaller updates all year round, so 25H2 doesn’t include any major new features. Rather, it includes all the new features that have accumulated in all those smaller updates.

As the company explains, “While this update doesn’t introduce major new features, it activates enhancements that have been gradually rolled out over the past year ensuring your device is up to date with the latest refinements.”

Here are some of the most important features in 25H2 that have been introduced for end users and IT pros since 24H2 was released last fall:

New features for users:

File Explorer has several useful new features, notably AI actions, which can edit images or summarize documents. AI options such as Blur background, Erase objects, and Remove background are all now displayed in the context menu.

Task Manager gets a number of minor tweaks, including performance improvements when changing the sort order of processes.

You can now display the apps that have recently used on-device generative AI models provided by Windows. You can also choose which apps are permitted to use the generative AI technologies. To do that and more, go to Settings > Privacy & security > Text and Image Generation.

New features for IT:

IT admins can use policy-based tools to easily remove preinstalled Microsoft Store apps from Enterprise and Education editions of Windows 11, version 25H2 and later. This can streamline device provisioning and prevent removed apps such as Microsoft Clipchamp, Media Player, and Microsoft Teams from being reinstalled. For more information, see Policy-based removal of preinstalled Microsoft Store apps and RemoveDefaultMicrosoftStorePackages in the ApplicationManagement Policy CSP.

Enterprise access points now support Wi-Fi 7, which enables increased speeds, greater throughput, improved reliability, and enhanced security. For details, see https://aka.ms/WiFi7forEnterprise.

Windows Backup for Organizations is now generally available.

A new feature called Quick Machine Recovery can recover Windows devices when they encounter critical errors that prevent them from booting. Quick machine recovery searches for remediations in the cloud and recovers from widespread boot failures, reducing the burden on IT admins on cases when multiple devices are affected. For more information, see Computerworld’s Quick Machine Recovery explainer.

Updates for Windows 11 24H2

KB5068221 (OS Build 26100.6588) Out-of-band

Release date: September 22, 2025

This update fixes a bug that affected Microsoft Office applications running in Microsoft Application Virtualization (App-V) environments. The failure occurred due to a double handle closure in the AppVEntSubsystems32 or AppVEntSubsystems64 system component.

There is one issue in this build: you might fail to connect to shared files and folders using the Server Message Block (SMB) v1 protocol on NetBIOS over TCP/IP (NetBT). This issue can occur if either the SMB client or the SMB server has the September 2025 security update installed.

(Get more info about KB5068221 (OS Build 26100.6588) Out-of-band).

KB5065426 (OS Build 26100.6584)

Release date: September 9, 2025

This build fixes several bugs, including one that caused non-admin users to receive unexpected User Account Control (UAC) prompts when MSI installers performed certain custom actions, such as configuration or repair operations in the foreground or background during the initial installation of an application.

The build also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and September 2025 Security Updates.

(Get more info about KB5065426.)

KB5064081 (OS Build 26100.5074) Preview

Release date: August 29, 2025

A wide variety of new features are being gradually rolled out in this build, including a new personalized homepage in Windows Recall that displays your recent activity and top-used apps and websites (available only in Copilot+ PCs). Among the changes rolling out to all users is a new grid view for Search from the Windows taskbar that helps you more quickly and accurately identify the desired image within your search.

Several bugs have also been fixed, including one in which some system recovery features did not work properly due to a temporary file sharing conflict. This affected certain device management tools and disrupted key functions on some devices.

(Get more info about KB5064081 Preview.)

KB5063878 (OS Build 26100.4946)

Release date: August 12, 2025

This build fixes a bug that caused delays during sign-in on new devices. The delay was due to certain preinstalled packages. It also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and August 2025 Security Updates.

(Get more info about KB5063878.)

KB5062660 (OS Build 26100.4770) Preview

Release date: July 22, 2025

A wide variety of new features are being gradually rolled out in this build, including a new agent in Copilot+ PCs that is designed to help you find and change settings on your PC. You can describe what you need help with, such as “how to control my PC by voice” or “my mouse pointer is too small,” and the agent will suggest steps to resolve the issue. The agent uses AI on your PC to understand your request and, with your permission, can automate and complete tasks for you. It is rolling out to Snapdragon-powered Copilot+ PCs now, with support for AMD and Intel PCs coming soon.

Several bugs have also been fixed, including one in which If you have an app pinned to your desktop and it updates, the app icon might not display correctly and instead show a white page.

(Get more info about KB5062660 Preview.)

KB5064489 (OS Build 26100.4656) Out-of-band

Release date: July 13, 2025

This update fixes a bug that prevented some virtual machines (VMs) from starting when Virtualization-Based Security (VBS) was enabled. It affected VMs using version 8.0 (a non-default version) where VBS was offered by the host. In Azure, this applies to standard (non–Trusted Launch) General Enterprise (GE) VMs running on older VM SKUs. The problem was caused by a secure kernel initialization issue.

(Get more info about KB5064489 Out-of-band.)

KB5062553 (OS Build 26100.4652)

Release date: July 8, 2025

The build fixes several bugs, including one in which notification sounds didn’t play. Affected sounds included those for on-screen alerts, volume adjustments, and sign-in. It also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and July 2025 Security Updates.

(Get more info about KB5062553.)

KB5060829 (OS Build 26100.4484) Preview

Release date: June 26, 2025

A wide variety of new features are being gradually rolled out in this build, including a new Settings home page that includes enterprise-specific device info cards for commercial customers on PCs managed by an IT administrator. The taskbar also now resizes icons to fit more apps when space runs low.

Users in the European Economic Area will see several small changes related to default browsers, such as mapping additional file and link types to the default browser and pinning it to the taskbar and Start menu.

A variety of bugs have also been fixed, including one that prevented the automatic renewal of expiring certificates in Windows Hello for Business.

There is one known issue in this build, in which blurry or unclear CJK (Chinese, Japanese, Korean) text appears when displayed at 96 DPI (100% scaling) in Chromium-based browsers such as Microsoft Edge and Google Chrome.

(Get more info about KB5060829 Preview.)

KB5063060 (OS Build 26100.4351) Out-of-band

Release date: June 11, 2025

This out-of-band update replaces the KB5060842 Patch Tuesday release, fixing a bug in which Windows sometimes restarted unexpectedly when users opened games that use the Easy Anti-Cheat service. Easy Anti-Cheat automatically installs with certain games to enhance security and prevent cheating in multiplayer online PC games.

Note: In this build there are reports of blurry or unclear CJK (Chinese, Japanese, Korean) text when displayed at 96 DPI (100% scaling) in Chromium-based browsers such as Microsoft Edge and Google Chrome. The issue is due to limited pixel density at 96 DPI, which can reduce the clarity and alignment of CJK characters. Increasing the display scaling improves clarity by enhancing text rendering.

(Get more info about KB5063060 Out-of-band.)

KB5060842 (OS Build 26100.4349)

Release date: June 10, 2025

After installing this update, Windows will retain system restore points for 60 days only. Restore points older than 60 days are not available. This 60-day limit will also apply to future versions of Windows 11, version 24H2.

The build fixes a bug that prevented users from signing in with self-signed certificates when using Windows Hello for Business with the Key Trust model. It also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and June 2025 Security Updates.

(Get more info about KB5060842.)

KB5058499 (OS Build 26100.4202) Preview

Release date: May 27, 2025

A wide variety of new features are being gradually rolled out in this build, including one in which Click to Do gets the new Ask Copilot action. When you highlight text or an image, Click to Do offers the Ask Copilot option. Selecting it opens Microsoft Copilot with your content in the prompt box. You can send the selected text or image directly to the Copilot app to complete your prompt.

A variety of bugs have also been fixed, including one in which devices with BitLocker on removable drives could encounter a blue screen error after resuming from sleep or hybrid-booting.

(Get more info about KB5058499 Preview.)

KB5061977 (OS Build 26100.4066)

Release date: May 27, 2025

This out-of-band update fixes a bug in the direct send path for a guest physical address (GPA). This issue caused confidential virtual machines running on Hyper-V with Windows Server 2022 to intermittently stop responding or restart unexpectedly. As a result, service availability was affected, and manual intervention was required. This problem primarily impacted Azure confidential VMs.

(Get more info about KB5061977.)

KB5058411 (OS Build 26100.4061)

Release date: May 13, 2025

This update fixes two bugs, one in which your microphone might have muted unexpectedly, and the other in which the eye controller app didn’t launch. It also has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and May 2025 Security Updates.

(Get more info about KB5058411.)

KB5055627 (OS Build 26100.3915) Preview

Release date: April 25, 2025

This build gradually rolls out several new features for Copilot+ PCs, including a preview of Windows Recall. When you opt in, Recall takes snapshots of your activity so you can quickly find and go back to what you have seen before on your PC. With it, you can use a timeline to find the content you remember seeing.

Copilot+ PCs also get a new natural-language Windows search in which you can search for anything on your PC without having to remember specific file names, exact words in file content, or settings names. Just describe what you’re looking for. On Copilot+ PCs, you can also more easily find photos stored and saved in the cloud by typing your own words (like “summer picnics”) in the search box at the upper-right corner of File Explorer.

All PCs get a number of new features, including speech recap, in which you can keep track of what Narrator has spoken and access it for quick reference. With speech recap, you can quickly access spoken content, follow along with live transcription, and copy what Narrator last said using keyboard shortcuts.

A variety of bugs are being fixed, including one in which some devices experienced intermittent internet connections when resuming from sleep mode. Several AI components have also been updated.

There are two known issues in this build, including one in which players on Arm devices are unable to download and play Roblox from the Microsoft Store on Windows.

(Get more info about KB5055627 Preview.)

KB5055523 (OS Build 26100.3775)

Release date: April 8, 2025

This update includes a wide variety of security updates. For details, see Microsoft’s Security Update Guide and April 2025 Security Updates.

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

(Get more info about KB5055523.)

KB5053656 (OS Build 26100.3624) Preview

Release date: March 27, 2025

This build gradually rolls out several new features for Snapdragon-powered Copilot+ PCs, including one in which you can search for anything on your PC without having to remember specific file names, exact words in file content, or settings names. Just describe what you’re looking for.

On Copilot+ PCs you can also more easily find photos stored and saved in the cloud by typing your own words (like “summer picnics”) in the search box at the upper-right corner of File Explorer. In addition to photos stored locally on your Copilot+ PC, photos from the cloud will now show up in the search results together.

Snapdragon-powered Copilot+ PCs also will allow you to use natural-language processing in voice access, by using your own words rather than using rigid, predefined commands.

In addition, the build includes a variety of bugs being immediately fixed, including one in which some third-party apps rendered the graphics settings page unresponsive.

There are two known issues in this build, including one in which players on Arm devices are unable to download and play Roblox from the Microsoft Store on Windows.

(Get more info about KB5053656 Preview.)

KB5053598 (OS Build 26100.3476)

Release date: March 11, 2025

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and March 2025 Security Updates.

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

(Get more info about KB5053598.)

KB5052093 (OS Build 26100.3323) Preview

Release date: February 25, 2025

In this build, a variety of new features are being rolled out gradually, including one that lets you snooze or turn off the “Start backup” reminder in the File Explorer address bar. This only applies if you are not already backing up your files and folder. To view this new option, right-click Start backup.

A number of bug fixes are being rolled out gradually, including one for a bug in which the address bar overlapped files in File Explorer when you used the F11 full-screen mode. A variety of bug fixes take immediate effect, including for a bug in which there were display rendering issues when you tried to connect to certain PCs.

There are two known issues in this build, including one in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows. In addition, devices that have certain Citrix components installed might be unable to complete installation of the January 2025 Windows security update. This issue was observed on devices with Citrix Session Recording Agent (SRA) version 2411.

(Get more info about KB5052093 Preview.)

KB5051987 (OS Build 26100.3194)

Release date: February 11, 2025

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and February 2025 Security Updates.

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

(Get more info about KB5051987.)

KB5050094 (OS Build 26100.3037) Preview

Release date: January 28, 2025

In this build, a variety of new features are being rolled out gradually, including one in which an icon will appear in the system tray when you use an app that supports Windows Studio Effects. This only occurs on a device that has a neural processing unit (NPU). Select the icon to open the Studio Effects page in Quick Settings. To view the app that is using the camera, hover over the icon for a tooltip.

A number of bug fixes are being rolled out gradually, including one for a bug in which a search would sometimes repeat when you didn’t want it to. Other bug fixes are immediately available, including one in which the display of some games appears oversaturated when you use Auto HDR.

There are three known issues in this build, including one in which Arm devices are unable to download and play Roblox via the Microsoft Store on Windows. In addition, following the installation of the October 2024 security update, some customers report that the OpenSSH (Open Secure Shell) service fails to start, preventing SSH connections. And devices that have certain Citrix components installed might be unable to complete installation of the January 2025 Windows security update

(Get more info about KB5050094 Preview.)

KB5050009 (OS Build 26100.2894)

Release date: January 14, 2025

This update has a wide variety of security updates. For details, see Microsoft’s Security Update Guide and January 2025 Security Updates.

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

(Get more info about KB5050009.)

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.

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.

(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.

(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.Gemini for Chrome gets a second AI agent to watch over it – ComputerworldRead More