[WindowsCentral.com]

We can safely customize many features and options in Windows without having to worry about if the next time you boot your computer will start correctly. Then there are those times when you need to modify the operating system in such a way that if you don't do it correctly, you might end up with serious problems. These problems could include not being able to boot, system stability problems, and many other issues.

This reason is why we always recommend you to protect your computer by doing a full backup of your system (or we tell you the risks involved doing a particular change). However, for years Microsoft's operating system has come with the System Restore feature, which can also help you fix your computer when things go wrong.

Full story from the WindowsCentral blog...