When er extract any file from winrar or any other compression software,a temporary file is created which is stored somewhere in Temp folder.Even , when we install anything, various temporary file is created.Over a period of time.U the size of this folder increases too much which in turn affects the performance of your PC.Various tools come which clean this folder when run them.It it will be better to let windows automatically delete the content from this temp folder without installing any software.Lets start .........what i prefer is %temp% " without quotes.. go to Start -> Run..
this opens ur temp folder n den u cal erase it neatly// still try dis one too..
Screenshot of my temp folder
First go into gpedit.msc
Next select -> Computer Configuration/Administrative Templates/Windows Components/Terminal Services/Temporary Folder
Then right click "Do Not Delete Temp Folder Upon Exit"
Go to properties and hit disable. Now next time Windows puts a temp file in that folder it will automatically delete it when its done! If u like it,leave a comment..........