Computer help NEW PROBLEM

[Matt]

Right ill quickly run through what's happened


i broke it.
tried to do a system restore to a previous date
cant restore as error with drive c:
tried to scan and fix drive c: unable to scan while computer is in use, so schedule a scan for start up
task manager has stopped working so cannot schedule scan



i need to system restore it, but cant because of the drive, cant fix the drive as i need the computer, cant schedule as i think i deleted part of it :/