ecache.sys file is corrupted following Windows Update
I woke up this morning to find that my computer had rebooted in the middle of the night and now could not start up properly. Startup repair had failed and the detailed report showed the root cause to be a corrupted ecache.sys file.
I then ran System Restore and had two restore point options: the scheduled checkpoint from 8:00 pm last night and one following the Windowx Ipdate Install at 11:00 pm last night. Neither restore points have worked.
The error returned here is: The request could not be performed because of an I/O device error. (0x8007045D)