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How to recover from an active sysprep (any windows os )
Assuming your machine cannot boot into windows, insert your installation disc and boot into that.
When disc finishes loading select your language and hit next.
Click the repair tools or repair my machine on the bottom left hand corner.
It will now search for an installed operating system. If nothing shows up you will need to download the storage device drivers for your machines from the manufacturer's web site, put them on a usb flash drive, and click load drivers button.