We’re putting the final touches on our new badges platform. Badge issuance remains temporarily paused, but all completions are being recorded and will be fulfilled once the platform is live. Thank you for your patience.
George Karnos
Ansys Employee

 

Couple thoughts:
Make sure you extract to a temporary directory and then run setup.exe by right–clicking on it and choosing more-> “run as administrator”
Make sure Virus software is not blocking install.
Verify enough disk space.
Also, if you search this forum for :  manifest file  
There are other posts that may give ideas.