MS Office Home and Student 2010 Error 1920 Configuration pop up

My daughter just started school and all of a sudden when selecting MS Office documents, Office try's to configure and install when we had installed years ago. Why this is popping up I have no idea. We cant use Office when we invested in this years ago. I do not have original disks or product key. Extremely frustrating when daughter cant use MS Office now. Called Microsoft as this was probably due to their updates (no other reason or thing we did). They turned off services and had me try to "repair". I received the same error - 1920: Service Office Software Protection Platform(OSPPSVC) failed to start. Verify that you have sufficient privileges to start system services. Set-up failed - Rolling back changes. Microsoft service tried to log in remotely and for some reason that did not work. Interesting? After the "repair" failed, I have another call into Microsoft. Anyone else have suggestions. This is very frustrated as I have spent hours on this and my daughter is just trying to start doing her high school work. She has to borrow our other computer. Any help is requested? I just want MS Office 2010 to stop trying to install when we had this installed before - Brian