Has anybody successfully removed McAfee trialware?

[Djard]

Has anyone been able to fully remove McAfee from a HP laptop? I ran McAfee's MCPR uninstall tool, but Windows' registry remained bloated with hundreds of McAfee keys, and the files I deleted in File Explorer with super admin privileges in Safe Mode returned like virus after reboot. 

[NonSequitur777]

@Djard,

Welcome to our HP Community forum!

Yes -this is normal behavior and does not mean McAfee is still installed or "regenerating itself".

Key points:

• MCPR is the authoritative removal method. If MCPR completes successfully, McAfee’s services, drivers, and kernel hooks are gone.

• Residual registry keys are expected. Many vendors (including McAfee) leave inert keys behind for:

  • licensing history

  • product detection (to prevent double-installs)

  • upgrade/downgrade compatibility
    These keys are not loaded, not executed, and have zero performance impact.

• Files "coming back" after reboot is almost always Windows Installer / Windows Security restoring stubs or permissions -not McAfee running.

• Manually deleting registry keys is unnecessary and risky. It provides no benefit and can break Windows Security, Defender handoff logic, or future AV installs.

• Verification:

  • services.msc → no McAfee services

  • Device Manager → no McAfee drivers (enable Show hidden devices)

  • Autoruns → no McAfee entries
    If those are clean, McAfee is fully removed.

Bottom line:

You cannot -and do not need to- achieve a truly "zero-key" registry.  MCPR already removed everything that matters. Anything left is inert metadata, not malware or active code.

If the goal is to use Windows Defender, it will automatically take over once MCPR completes and a reboot is done.

Now, if you are comfortable to manually Edit the Registry (Disclaimer: Advanced Users Only!) :

You can (again, not necessarily should) manually search for and delete any remaining McAfee entries.

Caution: Back up your registry before proceeding, as incorrect edits can cause system instability.

• Open the Registry Editor by pressing Windows key + R, typing regedit, and pressing Enter.
• Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\ and: HKEY_CURRENT_USER\SOFTWARE\.
• Right-click and delete any folders named "McAfee".
• Use the Edit > Find feature to search for other instances of "McAfee" and delete them, being careful to only delete entries directly related to the software. 

Use the Hidden Super Administrator Account (Disclaimer: Advanced Users Only!) :

If files still return after deletion, you may need to use the built-in, hidden "Super Administrator" account which has elevated permissions over standard admin accounts.

• Open Command Prompt as an Administrator.
• Copy/paste/Enter: net user administrator /active:yes
• Log out of your current account and log in to the new "Administrator" account that appears on the sign-in screen.
• From this account, attempt to delete the stubborn files in File Explorer (e.g., in C:\Program Files and C:\Program Files (x86)).
• Once finished, log out and return to Command Prompt (as admin) on your main account to disable the Super Administrator account by copying/pasting/Entering: net user administrator /active:no

After completing these steps, your HP laptop should be free of McAfee remnants, and the built-in Windows Defender antivirus will automatically take over protection.

Kind Regards,

NonSequitur777