Microsoft Office installation Error Code 3-4
The following procedures shows you that how to uninstall Office 2019 or 2021 products on your system. For other versions if Office and try to uninstall Microsoft Office 365 program by using of Control Panel.
If that does not work, use this to easily fix the tool or try uninstalling Office manually. If the Microsoft Office 365 program error code 3-4 still exist, then try the advanced registry fix.