Solutions for Error Code 30015-4 : Office programs will not open at all and gives you an error code 1058-4. Even you get a different error code 30015-4 when you try to repair or uninstall. This is found on Windows 8.1 to 10 machines recently. First do a disc clean up so that we can remove old-Microsoft office installation traces from your computer. How to do disc-cleanup:- Method-1 Creating shortcut 1. Right click on your computer home screen, Go to “new” in the list and select “Shortcut”. https://livesupportonlinechat.com/en-us/error-code-30015-4/