How to delete computer windows 7

- How to delete everything from computer windows 7
- How to delete history on computer windows 7
- How to delete all data from computer windows 7
- How to delete all files from computer windows 7
- How to delete temporary files in computer windows 7
- How to delete search computer history windows 7
- How to delete everything off my computer windows 7
- How to delete search history in my computer windows 7
- How to delete avast antivirus from my computer windows 7
- How to delete everything off a windows 7 computer
- How to delete pendrive history from computer without software windows 7
- How to delete junk files in windows 7 computer