Check for McCleanup under task scheduler (start - all programs - accessories - system tools - task scheduler) and delete it
Try running the MCPR tool again & restart the computer .
McAfee Online Community Moderator
Even if the mcafee removal tool does not work in normal mode try running the removal tool in safe mode.
managed to get it un-installed, many thanks to staff on online support. the customer had deleted the mcafee folder from the computer which made things difficult.