A system restore point lets you take the system back
to a previous stable state. It’s as if you’ve taken a picture of your
system so that you can see it as it was before you made a change.
Use system restore points carefully because the picture is extremely
accurate. For example, when you make a system restore point, it creates
a picture of any installed application. When you roll your system
back to that restore point, any new applications you installed become
inaccessible. You can learn more about creating a system restore point
in the “Defining a System Restore Point” section of Chapter
8.
Always create a system restore point after you back
up your system, but before you make any changes to it. The restore
point is a second option when fixing mistakes. It lets you remove
all of the changes you make when cleaning Windows. When you make a
significant mistake, one that can leave the system nearly unusable,
this is the restoration option to choose.