Windows 7 - Application Install: install rejected due to system policy-Catalyst

Hello this is my 1st post on your forum. I have also posted somewhere else about this but i m not getting any help so far so i thought i should try my luck here also. When i try to install ANY version of Catalyst i get this error message "Application Install: install rejected due to system policy". I ve tried everything, i have changed permissions on Local policies, tried to run the setup as administrator, tried different versions, clean install by removing left overs with Driversweeper in safe mode, but still same problem. After 5 hours i was able to find out that when i download packages individually from AMD i.e drivers, catalyst, codecs etc i am able to install them one by one, but when i try the complete installer this error comes up. Any suggestions? I am loosing my mind here