I didn't know that. I thought it would rob me of using SVP on my main account.
So I got SVP up and running in the other account, which meant that something I was running on my main account must have been causing the crash. I knew it had to be something so stupid, because that's usually how issues such as these occur.
The culprit? MSI Afterburner. I cannot believe after all this time it was that.
Anyway, it's up and running now, and everything is working. Thanks for those who contributed and tried to help me out. I know how trying to solve these issues can sometimes be like pissing in the wind.