Regshot

As a general rule, the programs you install and uninstall on your system add or modify entries on your Windows registry as needed.

If there's been any trouble with your PC and you think it might have to do with installing/uninstalling a certain software, Regshot is the tool you need.

Regshot is a simple program that notifies you of any change on your Windows registry.

How? In the simplest way you can imagine. Regshot takes screenshots of your registry, compares them, and shows you a report with all the existing changes (if there are any). After that it's your job to solve the problem, but thanks to Regshot you can have a basis to start troubleshooting.