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Windows 7: BSOD at random esp. during startup, error0x0000004a

03 Jun 2015   #1

Windows 7 Pro x64
BSOD at random esp. during startup, error0x0000004a

Hi everyone,
I'm new to this forum and joined only so I could get help with this god forsaken BSOD that i've been getting for over 2 months! I have tried to reinstall windows from a backup I made before the BSOD started and that didn't help, I tried to open the .dmp files with the windbg tool and didn't get to far cos I'm sort of a nube and don't know how to use it properly. All i did was get a "ntoskrnl.exe" thing as the likely cause so I googled it with no luck. Then I also tried looking in the windows event viewer and no luck there either as I'm not sure what I should be looking for, it's kind of funny that I know i've had like 3 bsod in 1 day and the event log thinks there were "0 critical errors"!

I usually get the bsod when I first boot up into Windows, then with in like 30sec or so. Sometimes It can take about 4 attempts to just to boot into Windows! Other times it will happen after the PC has been running for like 3-6 hours while browsing the web or even while gaming. I have gone 8 days without incident and other times I get 4 BSOD in 1 day!

So I ask you guys for help.

Thanks in advance

My System SpecsSystem Spec
04 Jun 2015   #2

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit

Microsoft (R) Windows Debugger Version 6.3.9600.16384 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.

Loading Dump File [C:\Users\YUSRA\Downloads\Compressed\GAUTAMSGORAYA-Thu_04_06_2015_103505_81\060415-13400-01.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 (8 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7601.18798.amd64fre.win7sp1_gdr.150316-1654
Machine Name:
Kernel base = 0xfffff800`03416000 PsLoadedModuleList = 0xfffff800`0365b890
Debug session time: Thu Jun  4 06:03:08.648 2015 (UTC + 6:00)
System Uptime: 0 days 0:00:29.444
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, {77c0dc4a, 2, 0, fffff880095d1b60}

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

Followup: MachineOwner

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

Returning to usermode from a system call at an IRQL > PASSIVE_LEVEL.
Arg1: 0000000077c0dc4a, Address of system function (system call routine)
Arg2: 0000000000000002, Current IRQL
Arg3: 0000000000000000, 0
Arg4: fffff880095d1b60, 0

Debugging Details:

PROCESS_NAME:  vsserv.exe


00000000`77c0dc4a ??              ???




ANALYSIS_VERSION: 6.3.9600.16384 (debuggers(dbg).130821-1623) amd64fre

LAST_CONTROL_TRANSFER:  from fffff80003487fe9 to fffff80003488a40

fffff880`095d1928 fffff800`03487fe9 : 00000000`0000004a 00000000`77c0dc4a 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`095d1930 fffff800`03487f20 : 00000000`00000d60 fffff880`095d1b60 00000000`00000000 fffff800`037726db : nt!KiBugCheckDispatch+0x69
fffff880`095d1a70 00000000`77c0dc4a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceExit+0x245
00000000`25f4fc48 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x77c0dc4a


fffff800`03487f20 4883ec50        sub     rsp,50h


SYMBOL_NAME:  nt!KiSystemServiceExit+245

FOLLOWUP_NAME:  MachineOwner


IMAGE_NAME:  ntkrnlmp.exe


IMAGE_VERSION:  6.1.7601.18798

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
Remove BitDefender antivirus and replace with MSE as a test.

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:Run Disk Check on your Hard Drive for file system errors and bad sectors on it.

 Hard Drive Diagnostics

  • Double click and open my computer.
  • Right click on desired drive and hit properties.
  • Click on tools tab and Check now.

Read complete instructions on the tutorial: Disk Check

Other Tests:

My System SpecsSystem Spec
04 Jun 2015   #3

Windows 7 Pro x64

I have uninstalled Bitdefender and now I'm gonna be using Security essentials like you suggested. I'm pretty sure that the blue screens started back when i was still using AVG though. Oh well can't hurt I suppose, I'll try what you suggested and report back in a few days. BTW thanks for such a quick response.
My System SpecsSystem Spec

07 Jun 2015   #4

Windows 7 Pro x64

Hi koolkat77,
I did what you suggested and switched to MS Security essentials and so far so good...It's been 4 days n I havnt had a BOSD yet. I have bn able to restart my system without any issues, I think this may have solved it but I'll wait another week before marking this as solved, as before I had gone for 8 day without a BOSD...I'll update you in a week...Thanks for the help...
My System SpecsSystem Spec
15 Jun 2015   #5

Windows 7 Pro x64

Hi koolkat77,
I think the BSOD issue is sorted, it's been 12 days and I haven't had 1 since it switched to MS SE...thanks for your help...
My System SpecsSystem Spec

 BSOD at random esp. during startup, error0x0000004a

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