[Updated] September Patch Tuesday updates are now available for Windows 10 versions 21H2 and older

Laurent Giret

Microsoft has released today the September Patch Tuesday updates for all supported versions of Windows 10, which include all fixes released in the latest optional updates released earlier this month. The same KB5005565 patch is now available for users running Windows 10 versions 21H2, 21H1, 20H2, and 2004, and Microsoft only mentioned a PowerShell fix in the release notes.

According to the company, the KB5005565 update “addresses an issue that causes PowerShell to create an infinite number of child directories. This issue occurs when you use the PowerShell Move-Item command to move a directory to one of its children. As a result, the volume fills up and the system stops responding,” the company explained.

These short release notes don’t tell the full story about the September Patch Tuesday updates, though. In the full list of security updates available on Microsoft’s Security Response Center website, the company also mentioned that it has fixed the Windows Print Spooler Remote Code Execution Vulnerability that has been making headlines since August. The Windows zero-day vulnerability based on malicious Office files has also been addressed this month.

As usual, you can download this latest Patch Tuesday update via Windows Update. Microsoft has also released new patches for Windows 10 versions 1909 and older, and you can learn more about what’s changed on Microsoft’s support site.

Update September 15 7:AM PDT: We’ve updated the post to mention the fixes for the critical “PrintNightmare” and Office vulnerabilities that are not mentioned in the release notes for the KB5005565 patch.