1. Click 'Start.' Type 'cmd' into the search field. Press 'Enter' to open the Command Prompt.
2. Type the following commands into the Command Prompt. Press 'Enter' after each command.regsvr32 /u mpoav.dlldel mpoav.dll
3. Type 'exit', without the quotation marks. Press 'Enter' to close the Command Prompt.
4. Restart your computer.