I had the exact same problem as adgalati.
Flavius' advice was awesome, worked! Except I also had to go into windows update and click the "name" box in the top left, which let me deselect all the updates. Then I reinstalled them a few at a time. It appears the Windows Update gets confused if it tries to update +120 things at once. So clear it out with Flavius' method, and then do them in small batches.
Hells4real...yes, delete everything in there.