I attempt to download my games on Microsoft edge and in never gets past the security scan the download locks up. I have tried on Firefox it downloads but when I double click it simply locks up my PC. What is going one?

I'm using Firefox and it works fine. Perhaps you have a virus that is modifying the downloads as you download them. Edge is detecting this and blocking them. Firefox doesn't detect them, but an anti-virus is once it has been download. Of course, I am just guessing. The actual problem could be totally different. Run an anti-virus scan, and see if anything is detected.