From time to time, you may need to re-install Windows back to your computer. Indeed, it's often a very quick and easy way of getting a clean system. If you only use a few apps and your data is stored on an external drive, it's a good way of starting with a brand new fresh install. Everything will just seem quicker. Problem is, Windows installation discs tend to ship with safe drivers to guarantee compatibility and are often much older than the drivers available from the manufacturers website.11 Jun 2009