windows 8.1 update on 3-11-2015 had killed the system. Cannot reboot . Error says System Thread Exception not handled. (AMUSTOR.SYS)
I have automatic updates configured and this update kicked in last night and this morning the system will not work. IT cannot recover and cannot restore the last restore point. IT looks like it wants me to go back t the original restore disks copies.
I am running on an HP ENVY 700 PC Series.