hey frazz! you have two options,
install windows, losing all you're legondary work

because when installed it DELETES EVERYTHING ON YOUR COMPUTER, and resets with factory settings, thats good, but alot alot of download of what ever you do

( guy thing lmfao )
Repairing will try to repair broken files, such as missing .dll files which is deadly important, so i HIGHLY suggest re-installing
i have a question ( sorry for on you're thread )
i booted my PC DESKTOP UP and it says windows has an error <windows root>//System32//dal.dll missing file ?
HELP me with that..
- nick