How to Remove System Mechanic from Windows Defender After Uninstalling

Problem:

I uninstalled System Mechanic and the Antivirus but it is still showing as a provider in Windows Defender. Please advise on how to uninstall.

Resolution:

Registry Clean Up:

  • Press Win + R, type regedit, and press Enter
  • Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\Features
  • Look for any System Mechanic or iolo entries and delete them
  • Also check: HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features (on 64-bit systems)
  • Restart your computer

Reinstall the Application and then Uninstall:

Some tools won’t uninstall if their uninstall files are missing or corrupted. Re-installing the same version of the software and then uninstalling it again can restore the uninstall mechanism.

Use a Third-Party Uninstaller:

Download and install Revo Uninstaller or, IObit Uninstaller.