Microsoft Office 2019/2021 Error Code 30088-4
The basic troubleshooting for this error code 30088-4 is for the repair of the office program, if it fails we need to uninstall and reinstall the program. The steps may clarify how to install Office and Uninstall or repair Office programs.
Error Code 30088-4 Windows 10:
Press to the Windows logo key + X to see the list of commands and options. (Basically, a quick way to get to Programs and Features in Control Panel.) Click Programs and Features. Click the Office program you want to repair, and then click Change. Do one of the following