RegSnap is a tool that can help you analyze changes made to the Windows Registry. With it, you can compare saved snapshots and learn which keys were modified, deleted, or added. You can also analyze other sensitive system parts, such as a list of files in Windows and Windows System directories, win.ini and system.ini files, and autoexec.bat and config.sys files. RegSnap generates HTML-based reports and undo/redo REG files.