Okay so, things got a little complicated... When I ran the tool, it froze while deleting a certain file in Firefox's app data (I think). I tried to print screen a picture, but Windows suddenly locked up and I literally couldn't do anything. I even got an error message while trying to access the ctr-alt-delete menu. After staring at a grey screen for a few hours, I had to just manually turn my computer off.
I haven't seen the error message yet, but I'm pretty sure it'll appear again, as it did the last time. I can't tell if maybe the file in question was protected, or that was a massive error on my PC's part, or what. I don't seem to have any error log of it, as nothing was produced.