Printer driver installation problem

I tried to install the driver of my HP printer on my Windows 7 Home Basic, but I get the following error message:
“This software cannot be installed using the ‘Run as’ command.”
But i’m using the ONLY account on this pc AND it’s an administrator account.
What’s wrong? Please reply….
Answer #1
Try right clicking it>>Run as administrator.
Answer #2
Also, make sure there aren’t any updates for HP in your Windows Updates.