Wow, thanks for bringing up network drivers. I didn’t think about that before, but upon checking them out I ended up finding a bunch of what seem to be VPN connections. I’m not sure how they got here since I never use any such software in 8.1 or 10, but getting rid of them opened Vegas right up again. Such a small silly fix, but it’s good I found it since it’s also one more thing dragging me down.
I’ll have to give the registry a once-over for any leftovers, but out of curiosity would you happen to know specifics on how something like that could block a program like Vegas from opening?