If your Windows Defender won’t start, then it might be possible that it is disabled by your PC’s Local Group Policy. Solution 4: By Editing Local Group Policy
Step 2 – Copy and paste the path given below and click OK.
Step 1: Press Windows key and R key together from your keyboard to open run. If you have an older version of Windows installed on your PC, update it and check for the issue. Solution 3: Update WindowsĪccording to many users, they weren’t able to start Windows Defender because the Windows 10 and 11 version installed on their PC was outdated. 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
