Can't Open file saved with MS Office 2007 running on Vista

So, I downloaded MS Office Enterprise 2007 on my machine which is running Vista and have been using it for a few months. I just started on-line classes and I created a file, saved it and when I try to retrieve it I get an error message.

Windows can not find "File name". Make sure you typed the name correctly then try again. Microsoft Office Genuine advantage.

WTF is going on? I've uninstalled Office and reinstalled and I get the same message.

I have a picture of the error but I can't post it here... so I can email it if someone wants to see it.