Windows 7 Error 1622

[robertwj]

Good day,

One of my clients running Windows 7 Pro has been getting an error 1622 when trying to install certain programs.
I had a issue with Microsoft Security Essentials so I removed it and then tried to re-install it but got error 1622, also had this issue with a few other apps.

Things I have already tried:

• SFC Scannow - no problems
• Full system and registry cleanups
• Malware scans
• Virus scans

None of these helped and I'm not sure where to go from here? Maybe a windows file has gone corrupt?