TABLE 2: ErrorControl Values
Value Setting	Description
IGNORE (0)	I/O Manager ignores errors the driver returns. No warning logs or displays.
NORMAL (1)	If the driver reports an error, a warning displays.
SEVERE (2)	If the driver returns an error and user did not choose LastKnownGood, reboot into LastKnownGood. Otherwise, continue the boot.
CRITICAL (3)	If the driver returns an error and user did not choose LastKnownGood, reboot into LastKnownGood. Otherwise, stop the boot with a blue screen crash.