I have a few suggestions to either fix it or narrow it down,

Try running it in admin, or moving it to a non-restricted folder(I.e documents, desktop ect.).

Try allowing it through or disabling your antivirus, I've had issues with other programs stopping abruptly before where avast had shut them down.

Try downloading from a different computer or internet connection entierly, It may not be downloading some files. if you have not, you could also try the other download method (I.e Torrent or direct download).

Lookign at your chat box post I assume you've been able to use older versions without issue, If you still have it try that on this computer.