Wife's computer - W 10 Pro Ver. 1511 - same specs as mine except I have Anniversary Edition (1607) installed. I opted to decline upgrades on her machine when the Anniversary Edition came out and I just discovered that I forgot to upgrade later as I had planned. I am unsure how to proceed to bring her machine up to date now. My initial thought was to uncheck the box that declines the upgrades and let the automatic update process take over and handle the upgrade. My second thought was to manually download and install the upgrade. I know that Creator Update is lurking (haven't installed it on my machine yet) and don't know how/if that impacts my current situation. One thing I have noted that might compound my problem is that no Windows security updates have been installed since January of this year. When I check on Update History, the message is "No updates have been installed". However, when I click on "Uninstall Updates" I get a full listing of installed updates - the most recent being January 10, 2017. When I check for updates, it searches for a long time and then displays a message: Then it displays an error code (0x800705b4. Search of the error code gave recommendations to run SFC which I did. Message was that "...found corrupt files but was unable to fix some of them..." Details were in a CBS log file which I looked at but couldn't decipher. Restarted computer and searched for updates with same results. Any suggestions appreciated.