tsiriaks
Ansys Employee
Close all ANSYS applications, then open elevated CMD Prompt (right click on CMD and 'run as administrator' ), and enter the following commands

regsvr32.exe ole32.dll
regsvr32.exe atl.dll
regsvr32.exe oleaut32.dll
regsvr32.exe scrrun.dll
regsvr32.exe jscript.dll
regsvr32.exe vbscript.dll
move "%appdata%\ansys" "%appdata%\ansys.old"

Make sure all are successful.