Causes For Error 30125-1007: Antivirus programming or firewall may be obstructing the Office suite.Intermittent internet connections can break the communication path.Pre-existing office program files are causing issues with the new installation.Incomplete removal of previous Office suite causes installation Error code 30125-1007 (12007). Steps to fix error code 30125-1007 Open Control Panel from Start menu.Click on Programs and Features.After that, select the Office program that you need to fix.Right-click Click Change to uninstall or repair