1. Click Start, click Run, type MSIEXEC /UNREGISTER, and then click OK. Even if you do this correctly, it may look like nothing occurs.
2. Click Start, click Run, type MSIEXEC /REGSERVER, and then click OK. Even if you do this correctly, it may look like nothing occurs, or you may briefly see an hourglass. After you run this command, the operation is complete.
However, there are more than three methods available on Microsoft Officer Website. Read more at the links below.
Written by: Xaivier Chia
Other solution:
Q319624
solution with photo guidance
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