Update KB5008212 bumps the version number to build 19041.1415 (2004), 19042.1415 (20H2), 19043.1415 (21H1), and 19044.1415 (21H2), and according to the official notes, it fixes problems previously outlined with the November “C” update preview, including problems with Windows Search, adds a new (–cd) argument to specify a Windows or Linux path on WSL, addresses networking issues, issues with Encrypted File System (EFS), BitLocker, and more. In addition, the company is also making available updates for older versions of Windows 10, including for versions 1909, 1809, 1607, and 1507.

Update KB5008212 fixes and changes

These are the most important improvements with the latest update preview of Windows 10: It’s important to note that Windows 10 2004 has now reached its end of service. If you are still on this version, it’s recommended to upgrade to version 21H2 to continue getting updates and support.

Updates for older versions of Windows 10

In addition, on December 14, the company also made available the update KB5008206 for Windows 10 version 1909 to fix several problems. The update brings the version number to build 18363.1977. As part of the version 1809 (October 2018 Update) release, the update KB5008218 became available on December 14 to address a known issue that might prevent Microsoft Defender for Endpoint from starting or running on devices that have a Windows Server Core installation. Also, this update includes all the fixes previously available with the November 22 preview. The update brings the version number to build 17763.2366. If you are still on version 1607, the December update bumps the version number to build 14393.4825, and it fixes several problems. Finally, the original release of Windows 10 (version 1507) received the update KB5008230, which brings the version number to build 10240.19145, and it addresses a number of issues.

Download December 2021 update for Windows 10

These updates are available immediately, and they will download and install automatically. However, you can always force the update from Settings > Update & Security > Windows Update and click the Check for updates button. Alternatively, you can download the update KB5008212 directly from the Microsoft Update Catalog website. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.