Forum Discussion
Windows Defender Cannot Be Activated After Uninstalling Comodo Anti Virus– Help Needed (Windows 10)
Hello Community, I’m experiencing a problem with my Windows 10 laptop and hope to get some guidance. Official support is no longer available for my system, so I’m turning to the community for help. ...
Your issue is quite common after uninstalling third-party antivirus programs like Comodo, especially if remnants such as drivers, services, or registry entries remain. These leftovers can interfere with Windows Defender, preventing it from activating properly.