These tools ensure to remove software leftovers like useless files and undo unnecessary changes.Īfter uninstalling the antivirus, restart your PC and try to start Windows Defender. Remember to uninstall the Antivirus software through a dedicated software remover tool. If this doesn’t work, you will have to uninstall the antivirus program from your PC.
If you really want to run Windows Defender on your PC, the first thing you should do is Disable Antivirus on your PC. Antiviruses interfere with important Windows settings that could lead to conflicts like these. What was found to be the reason behind Windows Defender not starting in most cases was the presence of Antivirus Software on PCs. Solution 2: Disable / Uninstall Antivirus
