Disk Cleanup

Disk Cleanup is a computer maintenance utility for Microsoft Windows.it is used for free up disk space on a computer's hard drive.it analyzes the files which are no longer in any use and removes that files.it removes Temporary Internet files,Temporary Windows files,Downloaded program files and Off-line files.

 You can access it by two ways

1.Type cleanmgr.exe in run press enter

Disk Cleanup

2.click on the properties of your local hard disk And click 

disk clean up.Select the all files and delete it.

It takes few mintues