If after a hardware change and you encounter Error Code 0x803FABB8, Donor hardware ID does not own operating system entitlement, see this fix.

Guide to fix Windows 11/10 Activation or Update Error 0x800f0805. Depending on which situation you are in, follow those solutions here.

Microsoft has released emergency updates for Windows 11 and Windows 10 to address a recent system bug.

Microsoft has provided a temporary fix for organizations using Windows Server Update Services (WSUS) to address installation issues with the latest security updates..

Microsoft has resolved a known issue that triggers Cluster service and VM restart issues after installing July's Windows Server 2019 security updates.