When trying to join to workgroup, or join domain, we get the message: “The Revision Level is Unknown”

To workaround this behavior:

1.  Log on locally with Administrator privileges.
2. Use the registry Editor to grant the your account Full Control of the HKEY_LOCAL_MACHINE\SECURITY\Policy\Secrets$MACHIN E.ACC registry key.
3. Delete the HKEY_LOCAL_MACHINE\SECURITY\Policy\Secrets$MACHIN E.ACC registry key.
4. Shutdown and restart your computer.
5. Log on locally with Administrator privileges.
6. Join a WORKGROUP and restart your computer.
7. Log on locally with Administrator privileges.
8. Join your domain.
9. Shutdown and restart your computer.
10. Logon to your domain.

Note:

The registry HKEY_LOCAL_MACHINE\SECURITY might not have anything visible with the local account you use to login. In order to workaround that:

1. Download PSTools (https://download.sysinternals.com/files/PSTools.zip)
2. Extract.
3. Run:

psexec -i -s c:\windows\regedit.exe

4. Then do the above workaround.

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