Error 5: Access is denied in running Revo uninstaller Pro

Hi all.
I am receiving this message while I’m trying to uninstall Revo unistaller pro. But at the primary stage I tried spyware and said it was trying to run on startup so it said quarantine so I did, Now I move back to uninstall the program again and crushed with this error 5:

Error
Unable to create a temporary file. Set up aborted.
Error 5: Access is denied.
I don’t understand about the reason why it needs to make a temp when I’m trying to uninstall. Waiting for ideas? How will I uninstall this program?
Suggestion will be appreciated. Thanks.
