+ R . And type %temp% and press ok as shown in figure.
Now delete all files permanently by SHIFT+delete ...But some files are used by some other programs...
that files u cant delete ..to delete that files also u have to download unlocker .
1. Simply right click the folder or file and select Unlocker
2. If the folder or file is locked, a window listing of lockers will appear
3. Simply click Unlock All and you are done!