HOW TO DELETE TEMPORARY FILES :

Step 1. Click Start -  Run - Type Temp - Press Enter Key -  In the new Window select all the Files - press Delete
             key. and be sure you empty Recycle Bin too.

Step 2.  
                  * Double-click the My Computer icon.
                  * Right-click on the C: drive and select Properties.

                  * Click the Disk Cleanup button

                        * Delete all temporary files.