There are 3 ways to do this
Fix "Setup is preparing your computer for first use" issue on every reboot
Have you ever had the problem where every time you start Windows you get the following message:
This happened to me on a Windows 7 machine. I had actually created an image of Windows 7 and then put that image back on another machine. When I booted the machine I kept getting this message every time and it was really annoying.
You'll probably only see this error if you're trying to restore an image of Windows 7 to dissimilar hardware. In this article, I'll list a few possible solutions that will hopefully remove the message from booting.