PSIsafe Installation Troubleshooting: Issue 08.05: On Install error shows Error 1001

Problem: 

When installing PSIsafe, the following error occurs:

Error 1001. Could not load file or assembly……..Failed to grant permission to execute……(Exception from HRESULT:…) Invalid Syntax..

Solution: 

.NET Framework may be corrupted. Reinstall the .NET Framework 3.5 SP1 or later equivalent version.