Affected users have found relief by often uninstalling KB5066835 alongside KB5065789 using command line tools like wusa.exe, followed by a restart.

Alternative workarounds include disabling HTTP/2 through registry edits under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\IIS\Parameters or updating Microsoft Defender Antivirus definitions via KB2267602, which resolves the issue without full rollback in some cases.

Fresh Windows 11 installations appear immune, suggesting the error stems from interactions with existing setups rather than a core flaw.