So I came across a very annoying Windows Update error on several of my clients’ servers recently – each of them having issues installing Microsoft KB2463332. The error doesn’t say much other than the update failed with error code 643. After some quick research, I found the issue and a resolution…
This issue occurred with me because the Windows Internal Database was already installed when we promoted the server to a Domain Controller. The result of this was that certain Local Group SID’s were being held in the registry, and DC’s do not have Local Users or Groups. Here is the resolution…
- Open regedit and navigate to HKLM\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL.X\Setup
- Right click the “Setup” folder and back it up by exporting to the Desktop
- Find and delete the following sub-keys… SQLGroup, AGTGroup, FTSGroup and ASGroup. These keys’ data contains the SID’s of the offending groups
- Try to reinstall the Windows Update. You should now get a “The updates were successfully installed” message
Sources: Microsoft KB 925976


Thanks, worked perfectly…
Hans
Thank you very much!!!
Worked for me tooo!!!
God bless you!!