Windows 10 gets February 2025 update KB5051974 (build 19045.5487)

Microsoft starts previewing the visual changes and fixes for the February 2025 update for Windows 10.

Windows 10 KB5051974
Windows 10 KB5051974 / Image: Mauro Huculak

UPDATED 2/11/2025: Microsoft is now rolling out Windows 10 build 19045.5487 (KB5051974) as part of the February 2025 update for version 22H2, which includes the new Outlook app and fixes for virtual memory, IME, NFC, USB Print, and screen capture. (Windows 11 22H2 is getting build 19044.5487 with the same KB5051974 update number.)

According to the official changes (Microsoft notes from the Release Preview Channel), build 19045.5435 for Windows 10 22H2 replaces the Mail app with the new Outlook experience already available on Windows 11.

Also, this update now shows weather information in the calendar. To turn on this option, open Settings > Time & Language and turn on the “Weather” toggle under the “Calendar Events” section. You will also find two on the page, including “Feature holiday & events” and “Holiday illustrations.”

Windows 10 new Calendar settings
Windows 10 new Calendar settings / Image: @PhantomOfEarth

Once you turn on the features, you will notice information for weather, holidays, and holiday graphics in the “Calendar” interface when clicking the “time and date” area in the System Tray.

Windows 10 new Calendar events / Image: @PhantomOfEarth
Windows 10 new Calendar events / Image: @PhantomOfEarth

If you can’t find the settings, it’s possible to enable the “Calendar events” section (via @PhantomOfEarth) using the ViveTool and running vivetool /enable /id:51858330,48433719,49453572 command. (This command may or may not work for everyone.)

In addition, this Windows 10 non-security update fixes various issues with virtual memory, causing apps to fail, and addresses a problem.

When using the Chinese Pinyin input method editor (IME), Bing will stop giving automatic suggestions. This update also fixes a problem preventing NFC from reading cards, addresses print spooler issues with the USB Print and IPP Over USB, and fixes the Capture Service and Snipping Tool to stop responding.

Finally, this release updates the list of drivers at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.

Older versions of Windows 10

In addition, Microsoft is releasing updates available for older operating system versions, including 1809, 1607, and 1507. For example, the company is rolling out the update KB5052000 for version 1809, bumping the build number to 17763.6893 with some fixes regarding Microsoft Edge IE mode, Windows Kernel Vulnerable Driver Blocklist file, and Digital/Analog converter (DAC).

Windows 10 1607 receives the update KB5052006, which bumps the version to build 14393.7785 and resolves a number of USB problems with the operating system.

Finally, Windows 10 1507 is getting the update KB5052040, which increases the version to build 10240.20915 and introduces some security fixes.

Cumulative update installation

If you want to download and install Windows 10 build 19045.5435, you can force the update from Settings > Update & Security > Windows Update, turn on the “Get the latest updates as soon as they’re available” toggle switch and click the “Check for updates” button.

If you prefer manually installing the February 2025 update for Windows 10 22H2 and 21H2, download it from the Microsoft Update Catalog website.

If you encounter issues after applying this cumulative update, you can uninstall it using these instructions to revert to the previous version of the operating system.

Originally, this update was available as the Windows 10 build 19045.5435 (KB5050081) in the Release Preview Channel of the Windows Insider Program, but now, it’s rolling out as an optional install as build 19045.5440 with the same KB number in the Stable Channel. On February 11, the update becomes build 19045.5487 for version 22H2 and build 19044.5487 for version 21H2, but both builds have the same KB5051974 number.

Update February 11, 2025: This content has been updated with new information, and it’s been revised to ensure accuracy.

About the author

Mauro Huculak is a Windows How-To Expert and founder of (est. 2010). With over 21 years as a technology writer and IT Specialist, Mauro specializes in Windows, software, and cross-platform systems such as Linux, Android, and macOS.

Certifications: Microsoft Certified Solutions Associate (MCSA), Cisco Certified Network Professional (CCNP), VMware Certified Professional (VCP), and CompTIA A+ and Network+.

Mauro is a recognized Microsoft MVP and has also been a long-time contributor to Windows Central.

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