Microsoft Office 10 can't install, HELP PLEASE!?

I had a trial version and couldn't register it online. I wanted to uninstall it, but accidently clicked on 'repair'. I then tried to uninstall it but nothing happened. Whenever I open a Microsoft program a window appears saying "Preparing all the necessary files for setup", after that another window appears saying "Subscription cannot verify the license for this app. A repair attempt failed or was canceled by the user." Can anybody pleas help me with this problem? I have Windows 7 Ultimate. THANKS