http://answers.microsoft.com/en-us/windows/forum/w indows_7-windows_update/how-to-delete-windows7-upd ate-backup-files/e7656dfc-2d7c-e011-9b4b-68b599b31 bf5
http://www.sevenforums.com/windows-updates-activat ion/133198-save-space-delete-old-windows7-update-f iles.html
http://www.howtogeek.com/?post_type=post&p=44317