Hi Tron. I'm Greg, an installation specialist, 10 years Windows MVP, and Volunteer Moderator here to help you.
Follow Step 10 here for what to do in this case:
http://answers.microsoft.com/en-us/windows/wiki...
After confirming the image by which WIndows repairs its files using DISM, if it still can't repair the file within 3 separate attempts, move on to Step 11 to do a Repair install which actually takes less time to fix the files than to try to do it surgically, and always works since it reinstall Windows while keeping your files, apps and settings in place.
I hope this helps. Feel free to ask back any questions and keep me posted. If you will wait to choose if I resolved your problem, I will keep working with you until it's resolved.
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