Reason: The Win upd disables a driver called secdrv.
You can manually invert the process by doing the following:
Go to Start, enter cmd (with admin rights), enter the following:
1) “Arm” and “activate” secdrv at once by entering sc config secdrv start=auto . The driver will then be automatically started at startup which MS does not advice.
2) “Arm” the driver by entering sc config secdrv start= demand . This will load it when needed. To load it directly enter sc start secdrv . If the upcoming log contains the line “4 RUNNING” you can go on.
Deactivate the driver with sc stop secdrv (single time) or sc config secdrv start= disabled(by default) if needed.