Creating Windows restore points is a good way to help to restore your computer if any troubles such as virus or advertising bots infection occur.
The restore point is a system image in which its current state is recorded (settings, appearance, installed programs). By creating and saving such a point, you can return your system to the recorded state at any time.
If you have opened a suspicious mail attachment accidentally, and now advertising banners appear on your computer screen (an advertising bot has been installed in your system) – with restore points you can return the system “back to the past” before the bot infects. Restore points are not absolutely troubles panacea, but very often, a “rollback” of the system saves the situation and returns the computer to a normal working state.