How to clear cache of the computer?

• If you are using Window OS then open RUN application in your computer.

Temp folder opening through RUN

• And write %temp% in open: box and click on ok.
• After that a folder will open and that folder will contain so many unusual folders and files. You have to only delete these folders and files. 
• Some folder and files may not delete then please skip it. The reason of some folder and files cannot delete because they are running at that time.