2. The computer didn't restart. After installation. NET Framework 4.5 For the first time, there was no computer restart. Solution: Restart the computer.
3.PPT has not been completely closed. PPT software is not completely closed. Solution: Close all PPT processes completely and then open them again. If you are not sure whether it has been completely shut down, please log off the computer directly and try again.
4. The add-in is not enabled. Is not enabled in COM add-ins. Solution: In Office 2010/2012016, click File, Options, Add-ins and Manage: COM Add-ins to open the COM Add-ins window. Check and confirm it to see if it can be enabled.