User folder shows up with wrong name

So, I managed to merge my downloads folder with my user directory. Overwriting my user name folder as "Downloads". I have managed to fix the Downloads folder via regedit, but my username folder is still named "Downloads". When listing users in command promt it does indeed show as my original username however.

Is it possible to fix this? It was so easy to break, so I guess it's 10x harder to fix...

See comment for image of problem.