Windows 11’s August update fails to install on some PCs. Here’s what you can do

Earlier this week, Microsoft rolled out the mandatory Windows 11 update KB5063878 for August, introducing a suite of enhancements and features, including the much-anticipated Quick Machine Recovery. This new capability empowers IT administrators to remotely troubleshoot and reboot malfunctioning PCs, streamlining the management of workplace technology.

However, the rollout has not been without its hiccups. A number of users have reported difficulties with the installation process, with various forums and Reddit threads buzzing with complaints. Many are encountering error codes such as 0x80240069, 0x80240031, and 0x800f0922, indicating failed installations.

Microsoft has acknowledged these issues, categorizing them as known errors in their support documentation. Notably, users who obtain Windows updates through Windows Server Update Services (WSUS) seem to be disproportionately affected. This is particularly relevant for organizations that rely on WSUS for their update management, aligning with feedback from system administrators who have voiced their concerns.

Interestingly, the installation troubles appear to be independent of whether the Windows system is newly installed or has undergone multiple updates, complicating the search for a definitive solution.

What you can do if you’re affected

For those impacted by these installation challenges, Microsoft has proposed a temporary remedy: the “Known Issue Rollback.” This feature allows users to revert a problematic Windows update.

Additionally, a workaround has been suggested, which involves modifying the Windows registry or executing a PowerShell script, as outlined by Windows Latest. This approach may provide some relief while awaiting a more permanent fix.

If you prefer not to wait for Microsoft’s resolution and wish to reinstall the update promptly, you can opt to download the patch directly from Microsoft’s Update Catalog and proceed with a manual installation.

Further reading: Microsoft asserts that Windows 11 24H2 is the “most reliable” version of Windows ever.

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Windows 11's August update fails to install on some PCs. Here's what you can do