Skip Revo-Uninstaller, no idea why you'd ever use such trial software. Anyway what you want is CCleaner, standard software that all Windows installs should have on hand.
http://blog.talosintelligence.com/2017/09/avast-distributes-malware.html https://www.piriform.com/news/blog/2017/9/18/security-notification-for-ccleaner-v5336162-and-ccleaner-cloud-v1073191-for-32-bit-windows-users
