No idea what happened. I had been using the S2 for some time and then I noticed two things, while looking around. First it said auto updates were not on (they had been), so I turned them back on, then I found a Windows Defender Update waiting, so I installed it. Then, it started acting strangely, e.g. I could not connect to Skydrive. I decided to reboot and that is when the fun began. It, immediately went into "repair" and failed. Tried again, with the same result. Then tried a reset. Entered the key and away it want, for about 5 seconds. Got an undefined error and tried again. Same thing. So, I am now doing a complete wipe and restore. Strange.