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Windows 7: Blue Screen error IRQL_GT_ZERO_AT_SYSTEM_SERVICE

29 Jan 2015   #1

windows 7 home premium x64

Hi friends from time to time my computer shutdown with a blue screen while I¨m working in my PC.
I did a memtest, hard test and all and my drivers are updated.
This was probably caused by the following module: ntoskrnl.exe (nt+0x76E80)
Bugcheck code: 0x4A (0x7798132A, 0x2, 0x0, 0xFFFFF88018107B60)
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.

could you help me?

My System SpecsSystem Spec
30 Jan 2015   #2

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit


BitDefender is a cause of BSOD's. Please remove it.
Microsoft (R) Windows Debugger Version 6.3.9600.16384 X86
Copyright (c) Microsoft Corporation. All rights reserved.

Loading Dump File [C:\Users\YUSRA\Downloads\Compressed\ZIABOGA-PC-29_01_2015_130613,63\012915-3276-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

************* Symbol Path validation summary **************
Response                         Time (ms)     Location
Deferred                                       SRV*c:\symbols*
Symbol search path is: SRV*c:\symbols*
Executable search path is: 
Windows 7 Kernel Version 7601 (Service Pack 1) MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS Personal
Built by: 7601.18700.amd64fre.win7sp1_gdr.141211-1742
Machine Name:
Kernel base = 0xfffff800`02202000 PsLoadedModuleList = 0xfffff800`02445890
Debug session time: Thu Jan 29 16:26:56.544 2015 (UTC + 6:00)
System Uptime: 0 days 1:10:29.434
Loading Kernel Symbols

Press ctrl-c (cdb, kd, ntsd) or ctrl-break (windbg) to abort symbol loads that take too long.
Run !sym noisy before .reload to track down problems loading symbols.

Loading User Symbols
Loading unloaded module list
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Use !analyze -v to get detailed debugging information.

BugCheck 4A, {7798132a, 2, 0, fffff88018107b60}

Probably caused by : ntkrnlmp.exe ( nt!KiSystemServiceExit+245 )

Followup: MachineOwner

1: kd> !analyze -v
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Returning to usermode from a system call at an IRQL > PASSIVE_LEVEL.
Arg1: 000000007798132a, Address of system function (system call routine)
Arg2: 0000000000000002, Current IRQL
Arg3: 0000000000000000, 0
Arg4: fffff88018107b60, 0

Debugging Details:

PROCESS_NAME:  vsserv.exe


00000000`7798132a ??              ???




ANALYSIS_VERSION: 6.3.9600.16384 (debuggers(dbg).130821-1623) x86fre

LAST_CONTROL_TRANSFER:  from fffff80002278429 to fffff80002278e80

fffff880`18107928 fffff800`02278429 : 00000000`0000004a 00000000`7798132a 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`18107930 fffff800`02278360 : 00000000`00000c20 fffff880`18107b60 00000000`00000000 fffff800`02562513 : nt!KiBugCheckDispatch+0x69
fffff880`18107a70 00000000`7798132a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceExit+0x245
00000000`23fdfcc8 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x7798132a


fffff800`02278360 4883ec50        sub     rsp,50h


SYMBOL_NAME:  nt!KiSystemServiceExit+245

FOLLOWUP_NAME:  MachineOwner


IMAGE_NAME:  ntkrnlmp.exe


IMAGE_VERSION:  6.1.7601.18700

FAILURE_BUCKET_ID:  X64_RAISED_IRQL_FAULT_vsserv.exe_nt!KiSystemServiceExit+245

BUCKET_ID:  X64_RAISED_IRQL_FAULT_vsserv.exe_nt!KiSystemServiceExit+245


FAILURE_ID_HASH_STRING:  km:x64_raised_irql_fault_vsserv.exe_nt!kisystemserviceexit+245

FAILURE_ID_HASH:  {7e9f2f5a-c8f7-350e-d3b5-490f9ba5e969}

Followup: MachineOwner
Microsoft Security Essentials is recommended from a strict BSOD perspective, compatibility & stability compared to other internet security software. Malwarebytes is a great combo to MSE. They are free and lightweight.

Also uninstall your existing Antivirus software before you install MSE.

Good and Free system security combination.

warning   Warning
Do not start the free trial of Malware Bytes; remember to deselect that option when prompted.

 Clean boot
Reduce items at start-up. No software except anti-virus is required plus doing this improves the time for logging into windows:Run the System File Checker that scans the of all protected Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible:
  • Click on the
  • Type CMD on Search
  • Left click and Run as Administrator
  • Type SFC /scannow
Full tutorial here:Temp Monitoring

Check for heating issues using Speccy or HWMonitor.

Upload a screen shot with either of the tools: Screenshots and Files - Upload and Post in Seven Forums
My System SpecsSystem Spec
30 Jan 2015   #3

windows 7 home premium x64

hi friends, I unistalled bitdefender and then installed MSE and Malwarebytes antimalware.I used all tools you told me and now I have to wait for a time to see if a new blue scrren appears.
Thanks for all.
My System SpecsSystem Spec



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