Windows Blue Screen of Death Error Messege.

I was playing Sid Meiers Civilization Beyond Earth Offline last night when my PC Crashed.

I got the Blue Screen of Death and this Error Message from Who Crashed?
The only stuff that was running was my Bitdefender Anti Virus.

Any ideas what the error message means? I am clueless here.

From Who Crashed?

System Information (local)

computer name: MY_PC
windows version: Windows 7 Service Pack 1, 6.1, build: 7601
windows dir: C:\Windows
Hardware: ASUSTeK Computer INC., M2N-SLI DELUXE
CPU: AuthenticAMD AMD Phenom(tm) 9600S Quad-Core Processor AMD586, level: 16
4 logical processors, active mask: 15
RAM: 2145902592 total

Crash Dump Analysis

Crash dump directory: C:\Windows\Minidump

Crash dumps are enabled on your computer.

On Tue 24/02/2015 00:06:15 GMT your computer crashed
crash dump file: C:\Windows\Minidump\022415-45833-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x74EC0)
Bugcheck code: 0x4A (0x776D132A, 0x2, 0x0, 0xFFFFF88002C4FCA0)
Error: IRQL_GT_ZERO_AT_SYSTEM_SERVICE
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a thread is returning to user mode from a system call when its IRQL is still above PASSIVE_LEVEL.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.

On Tue 24/02/2015 00:06:15 GMT your computer crashed

crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: ntkrnlmp.exe (nt!KeBugCheckEx+0x0)
Bugcheck code: 0x4A (0x776D132A, 0x2, 0x0, 0xFFFFF88002C4FCA0)
Error: IRQL_GT_ZERO_AT_SYSTEM_SERVICE
Bug check description: This indicates that a thread is returning to user mode from a system call when its IRQL is still above PASSIVE_LEVEL.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.

Conclusion

2 crash dumps have been found and analyzed. No offending third party drivers have been found. Connsider using WhoCrashed Professional which offers more detailed analysis using symbol resolution. Also configuring your system to produce a full memory dump may help you.


Read the topic general suggestions for troubleshooting system crashes for more information.

Note that it's not always possible to state with certainty whether a reported driver is responsible for crashing your system or that the root cause is in another module. Nonetheless it's suggested you look for updates for the products that these drivers belong to and regularly visit Windows update or enable automatic updates for Windows. In case a piece of malfunctioning hardware is causing trouble, a search with Google on the bug check errors together with the model name and brand of your computer may help you investigate this further.