You need the Migration Kit Pro
The product you need is Zinstall Migration Kit Pro.
It will allow you to reinstall Windows on your computer, or upgrade your computer to Windows 7/8/8.1 in-place, and still retain all of your your programs, settings and files.
The Kit also supports capturing your entire computer onto an external hard drive, and then bringing everything back after you have installed a fresh copy of Windows.
The Rescue Kit works for Windows 8/8.1, Windows 7, XP and Vista, both for 32 bit and 64 bit systems.
Click here to read more about Zinstall Migration Kit Pro