Windows 10 update KB5006670

Windows 10 update KB5006670 outs for version 21H1, 20H2, 2004

Windows 10 21H1, 20H2, and 2004 receive the update KB5006670 to fix several problems. Here's all you need to know.

  • Microsoft releases October updates for Windows 10 21H1, 20H2, and 2004.
  • The updates provide fixes for some app problems.
  • Older versions of Windows 10 also get updates with various fixes.

As part of the October 2021 Patch Tuesday, Microsoft is now making available the update KB5006670 for computers running Windows 10 21H1, 20H2, and version 2004.

The update KB5006670 bumps the version number to build 19041.1288, 19042.1288, and 19043.1288 for versions 2004, 20H2, and 21H1, and the official notes only mention a fix that prevents some apps, such as Office and Adobe Reader from opening and causing a “stop reporting” error.

The same fix is also available for Windows 10 version 1909 but as update KB5006667, which increases the version number to 18363.1854.

Windows 10 version 1809 is getting a similar update, but it also fixes a printer problem and bumps the version number to build 17763.2237.

Also, Windows 10 version 1607 is getting the update KB5006669, which bumps the version number to build 14393.4704 and fixes a slew of problems.

Finally, the original version of Windows 10 is getting the update KB5006675. The patch increases the version number to build 10240.19086 and addresses several problems.

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 clicking the Check for updates button.

In addition, Microsoft has also released the first cumulative update for Windows 11 as part of the October wave of updates.

About the author

Mauro Huculak is a Windows How-To Expert who started Pureinfotech in 2010 as an independent online publication. He has also been a Windows Central contributor for nearly a decade. Mauro has over 14 years of experience writing comprehensive guides and creating professional videos about Windows and software, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 20 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and Email him at [email protected].