Tracking changes in Windows registry

Solution 1:

Process Monitor allows you to monitor file and registry activity of various processes.

Solution 2:

Can monitor registry changes made by specific program.

https://www.nirsoft.net/utils/reg_file_from_application.html

UPDATE: Just download NirLauncher (which includes all applications from NirSoft). It is one of the best additions to your Windows toolbox. https://launcher.nirsoft.net/