George Karnos
Ansys Employee

Is this the Free Student Software?

Recommend to uninstall.

Rename the c:\program files\ansys inc directory to Ansys.old
Rename %APPDATA%\Ansys\v242 to v242.old  (Or version you are using)

Download fresh version.
Unzip download
right-click on setup.exe and choose “run as administrator” to reinstall.