SysPrep was developed by Microsoft to make it easier for IT departments that prepare machines from cloned images of Windows. When you image a hard drive it retains old registry entries, device drivers, and product keys, and all of this has to be removed for a new system to operate correctly on a network of computers and devices (known in the IT industry as a domain). Running SysPrep is simple. It is also an alternative way to do a little spring cleaning of a computer before doing a full-fledged reinstall of Windows.
Reminder! Please make sure that you have all Product Keys for Windows and Microsoft Office before beginning this process.
Here are 10 simple steps to operating the System Preparation Tool.