IOBIT uninstaller is free and works fine for me... So far, it has deleted everything I throw at it, with or without being actually running in the task manager. It also wipes those annoying residual files that keep piling up in your hard drive...
Not only the unistaller... I also use the IOBIT Advanced System Care to manage my old laptop and, believe me, since I started using it, it feels like my computer regained the speed it has after being formatted or the speed it had back in the day, when software was actually designed to run on it!!!
Good luck. Believe me when I say you'll love this incredible piece of software.
Ah! you can legally download it for free in the developer website via
Fernando Stoffel Viseu