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Windows 7: BSOD when starting and loading windows in computer, Bad_Pool_Header

28 Dec 2013   #1

Windows 7 Home Premium x64
BSOD when starting and loading windows in computer, Bad_Pool_Header

I never had any big issues on this Acer laptop that I have been using for about a year and half up til now. I was using my laptop for about hour then I got back on it a few hours later and I get a BSOD. The BSOD states that it is a BAD_POOL HEADER. The technical information was 0x00000019 (0x0000000000000022, 0xFFFFF8A000C00000, 0x0000000000000001, 0x0000000000000000). I know a little about computer but I'm definitely not a computer expert so any help to solve this problem will be greatly appreciated.

I attached my DUMP files from the diagnostic tool on the thread.

My System SpecsSystem Spec
28 Dec 2013   #2

Windows 10

Hi welcome to SF afrougly .

This appears to be pretty straight forward, right off the bat the debugger doesn't seem to like
AVG's AVI Loader Driver, Driver Reference Table - avgldx64.sys.

BugCheck 19, {22, fffff8a000a00000, 1, 0}

*** WARNING: Unable to verify timestamp for avgldx64.sys
*** ERROR: Module load completed but symbols could not be loaded for avgldx64.sys
Probably caused by : avgldx64.sys ( avgldx64+7a74 )

0: kd> !dpx
Start memory scan  : 0xfffff880009a8968 ($csp)
End memory scan    : 0xfffff880009aa000 (Stack Base)

0xfffff880009a89f0 : 0xfffff8000345e000 : "nt!KiSelectNextThread <PERF> (nt+0x0)"
0xfffff880009a89f8 : 0xfffff8000360754a : nt!ExFreePoolWithTag+0x46a
0xfffff880009a8bd0 : 0xfffff880009a8c30 :  !du "C:\ProgramData\A"
0xfffff880009a8bf8 : 0xfffff8000360471e : nt!MiAllocatePoolPages+0x9e
0xfffff880009a8c30 : 0x0050005c003a0043 :  !du "C:\ProgramData\A"
0xfffff880009a8c38 : 0x00720067006f0072 :  !du "rogramData\A"
0xfffff880009a8c40 : 0x00610044006d0061 :  !du "amData\A"
0xfffff880009a8d28 : 0xfffff80003663580 : nt!NonPagedPoolDescriptor
0xfffff880009a9218 : 0xfffff880009a9390 :  !du "\Device\AvgAviLdr"
0xfffff880009a9278 : 0xfffff8000360471e : nt!MiAllocatePoolPages+0x9e
0xfffff880009a92b8 : 0xfffff800034af474 : nt!EtwpEventWriteFull+0x400
0xfffff880009a9388 : 0xfffff800037aa3a0 : nt!ObpQueryNameString+0xb0
0xfffff880009a9390 : 0x007600650044005c :  !du "\Device\AvgAviLdr"
0xfffff880009a9398 : 0x005c006500630069 :  !du "ice\AvgAviLdr"
0xfffff880009a93a0 : 0x0041006700760041 :  !du "AvgAviLdr"
0xfffff880009a93a8 : 0x0064004c00690076 :  !du "viLdr"
0xfffff880009a94a8 : 0xfffff80003607d0e : nt!ExAllocatePoolWithTag+0xfe
0xfffff880009a9598 : 0xfffff800038be467 : nt!IopLoadDriver+0xa07
0xfffff880009a9678 : 0xfffff88001e45000 : avgldx64
0xfffff880009a96a8 : 0xfffff800034a344d : nt!KiAcquireGuardedMutex+0x45
0xfffff880009a97f8 : 0xfffff800034cf410 : nt!KiServiceLinkage
0xfffff880009a9810 : 0xfffff880009a9828 : 0xfffff800038d6d58 : nt!PnpGetRegistryKeyInformation+0x78
0xfffff880009a9828 : 0xfffff800038d6d58 : nt!PnpGetRegistryKeyInformation+0x78
0xfffff880009a9868 : 0xfffff80003a04326 : nt!IopInitializeSystemDrivers+0x1d6
0xfffff880009a98d8 : 0xfffff8000364ee80 : nt!KiInitialPCR+0x180
0xfffff880009a98f8 : 0xfffff80003a054e2 : nt!IoInitSystem+0x9b2
Did by any chance the BSOD started when installing AVG?
Please boot into Safe Mode and uninstall AVG. You can use Microsoft Security Essentials instead.

This is Malware if I'm not mistaking.
SearchProtection    "c:\users\garrett white\appdata\roaming\search protection\searchprotection.exe
Scanning for infections is not a bad idea.
(*Kaspersky Rescue CD from a USB thumbdrive)

Post back with the results.
My System SpecsSystem Spec
29 Dec 2013   #3

Windows 7 Home Premium x64

No the BSOD did not start when I installed AVG. I installed the latest version of AVG actually after the BSOD started. I already had AVG 13 and I decided to install AVG 14 also a little while after. I uninstalled and removed anything to do with AVG through Programs and Features. This didn't change anything after I restarted the computer. Is there anything else I should do to remove any components related to the AVG causing the problem? This BSOD started out of no where and I never had this problem before. I ran all the programs for scanning for any infections. All of them came up clean except malwarebytes which found 5 suspicious item and I removed them.

The SFC /SCANNOW said: Windows Resource Protection found corrupt files but was unable to fix some of them
I also attached a updated dump file.

I also can't install Microsoft Essentials while in safe mode.
My System SpecsSystem Spec

29 Dec 2013   #4

Windows 7 Home Premium x64
Thanks for the the help!

Yep, I was able to solve the problem by reinstalling AVG to my computer. I am going to uninstall it then reinstall Microsoft essentials like you recommended. You were very helpful to solve the problem so thanks again for everything.
My System SpecsSystem Spec
30 Dec 2013   #5

Windows 10

Hey great news! :) .

Leave the thread open for a couple of days for further observation and if all goes well
use the green button and mark the thread as solved.
My System SpecsSystem Spec

 BSOD when starting and loading windows in computer, Bad_Pool_Header

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