Microsoft office 365 product shows as not activated after few days.

Solution

1. Opened CMD Navigated to Path - cd C:\Program Files (x86)\Microsoft Office\Office16\14\15
2. To view the installed product key, execute cscript ospp.vbs /dstatus
3. To uninstall an installed product key, execute cscript ospp.vbs /unpkey:XXXXX
4. Replace the XXXXX with the last five character of the currently installed product key (found in step 3). Last 5 digits only
5. To activate Office with the new product key, execute cscript ospp.vbs /act