I’m one of the developers of VEXcode, and I would like to help you, but I have a few questions first.
Are you using VEXcode V5 or VEXcode Pro V5?
Is there are reason you are trying to run the driver installer manually? Is this for a silent MSI install? If so, I assume you have installed the certificates as mentioned in the KB article. (same instructions for either version of VEXcode) https://kb.vex.com/hc/en-us/articles/360037761311-Installing-VEXcode-V5-with-MSI-Installers
Is this a school machine? If so, is it managed by the school’s IT department?