If you encounter an error with code 30088-4 during the installation or activation of Microsoft Office, there are several ways to fix it:
1) To avoid errors in applications, we recommend using only original distributions of Microsoft Office. You can download various versions of Office from our catalog.
2) Try disabling your antivirus temporarily during the installation or activation.
3) Follow the instructions on the next page. Afterward, restart your PC and try reinstalling the application followed by its activation.