
Click Start, then click on Control Panel.

The easiest way to fix this problem is to repair MS Office. Option #1: Repair MS Office using Control Panel The reason you're receiving this error message is because a configuration file or part of the MS Office binaries are corrupt / out of sync which is most likely the result of the rollback.įrom what I read online there are two ways that you can go about fixing this issue, though the third method (which I will also describe below) is the one that fixed it for me. I did have this exact same problem a few months back with another user.

I chose the option to activate on line (or by phone), but then all I get after that is a message that MS Office could not be activated because the product key is invalid. However, now whenever I try to open MS Office it starts up with a message that it is configuring MS Office, then says 'MS Office requires validation'.

I recently had to rollback Windows 7 because the system appeared to be corrupt.
