Hi,
Do you mean that a reboot will fix the issue?
If this issue can be fixed by a reboot, it's hard to find the update which causes this issue. Otherwise, we can remove the installed updates one by one to find the specific update which casues this issue.
Besides, have you installed KB3097877? I have seen some threads that this update may cause logon failure.
Best Regards.
Steven Lee Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.