Windows 7 64-bit - PC came up with Blue screen with following information: IRQL_NOT_LESS_OR_EQUAL Techinical Information: STOP: 0x0000000A (0xFFFFF680003F9D48,0X00000000000000000,0X00000000000000000,FFFFF80002AB731B) When boot up: Windows recovered from unexpected shutdown: Problem Signature: Problem EventName:BlueScreen OSVersion 6.1.7601.2.10.256.48 Locale ID:3081 Additional info: BCCODE: a BCP1: FFFFF680003F9D48 BCP2: 0000000000000000 BCO3: 0000000000000000 BCP4: FFFFF80002AB731B OS Version: 6_1_7601 Service Pack: 1_0 Product: 256_1 The only thing that I could find is that Windows Service Pack 1 was installed before the error came up. Any advice please. Thanks