|my C drive is only 15% available after i did a defrag, registry defrag, disk clean up, removed junk files, system restore clean up, and manually deleted all my user files and downloads. somehow, there is still over 60gbs being used. if there is no way to delete all this stuff how do i restore my computer to factory settings?|
i have a windows 7 disk that i plan on installing after i free up all this space and upgrade my RAM. should i just try to reset everything to factory and save myself time?