Switched from XP to Vista
I expected the worst possible scenario but so far, so good. I'm liking it. I ended up reformatting the entire OS due to the fact some shitty, creepy /b/tard gave me powerful trojans that even my almighty antiviral software was not unable to detect and eliminate. I'm not all that mad and I don't totally hate /b/ since I was gullible enough to fall for their mischievous intentions, and I wanted to switch OS long before this happened anyway.