After decades of the PC the lesson is:"We only lose what we don't backup."There have been a few that want this to not be true but let it finish and hope for the best. There are several repairing processes that are available with in Windows.
Near the end you just close up and then heal but in the middle you may not be able to either way and it is just starting over.
The real villain and answer to this problem is a third party Security suite.Seriously folks, for an update as massive as the Anniversary edition, please do make an image copy of your full system disk before you start.Hopefully, you won't need it but better than discovering 20/20 vision after the event.Right now i am downloading the update again and try to install it.I thank and am humble to the experts that provide us with expert advise when it is almost impossible to get from Microsoft or the third party vendor. Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation. running msconfig again, enabling all under startup items and all under services, but IVE UNCHECKED THE FOLLOWING : A. Maybe, my practice has prevented me from getting into KSOD. I think it is MS fault in designing the event log system which can screw up the PC when the event log file get corrupted.Take advantage of their offer Gaddy Thanks for reply guys.After restoring to previous version my windows just fine and load normally. is it because windows restoring before update was downloaded ?However, if you time it JUST RIGHT, a critical system file or configuration element in the process of being updated will be corrupted and the system will be unable to boot.Worse, it may have some damage that results in weird behavior, intermittent crashes or general slowness.