Hi @davidolivier, sorry to hear about your issues. Could you kindly confirm which Visual Studio version you are using? If not already, we recommend 2019. Have you tried (as a test) both the 32 and 64 bit versions?
If you have a spare system to test that would also be useful as the files themselves have been checked for consistency. I assume that you already tried downloading again , perhaps with a download manager to ensure no lost packets.
Hopefully we will get you up and running soon, thanks for your patience.