Hi koahning,
I've had a similar problem. Maybe my bugreport helps:
https://bugreports.qt.io/browse/QTIFW-1003
After installing notepad++ and assigning ".vbs" extension to it, windows wasn't able to execute ".vbs" scripts anymore. Resetting the assignment in the regedit (HKEY_CLASSES_ROOT.vbs to "VBSFile") solves this issue.
Maybe this solves your issue, too.
Regards
Jazzco