System Refresh was the only way I could find to recover from the PowerPoint error on a Surface 2 (RT). The patch was part of so many others that a real rollback was not that easy. One thing that did NOT work as expected while I was trying to uninstall updates was that, while I could see them all, I could not get a checkbox to uninstall selected ones. At the time, I could not find anything via searches that helped isolate the specific update anyway.The refresh worked and I lost no data (had it backed up anyway) but there were unintended consequences. The worst of which was that Outlook (desktop) had to be completely re-setup, and it took awhile to sync everything (couple of accounts, Exchange servers). After the refresh, I waited a bit, then did a disk cleanup to get rid of windows.old which was taking up some of the limited SSD space. I have a 64G version, Mont sure how refresh would work on 32G Surface 2.