Computers take a lot of abuse. We load up our hard drive with bulky programs that we use once and forget about. We get in a rush and close the lid of our laptop without properly shutting it down. Some of us can't live without our speed-sapping Steam Client. Some users even install a new operating system on top of another without wiping the system clean. Windows allows you to restore your system to various checkpoints, but that is hit or miss at best. Most users fail to recognize that it even exi