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Windows 7 BSoD minidump says mbamservice.exe

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Uninstall BitDefender or Malwarebytes as having both present is causing system instability.

Traces from your logs:

BitDefender (most likely 2016) drivers

avc3.sys                    Tue Jan 19 07:52:34 2016 (569E3FA2)
avckf.sys                   Tue Jan 19 07:55:54 2016 (569E406A)
bdfwfpf.sys                 Tue Feb  9 06:12:25 2016 (56B9D7A9)
bdvedisk.sys                Mon Nov 23 05:38:07 2015 (5652FA9F)

MBAM driver that is crashing:

mwac.sys                    Tue Jun 17 21:06:34 2014 (53A0F42A)
BugCheck D1, {0, 2, 0, fffff8800209456b}
*** WARNING: Unable to verify timestamp for mwac.sys


fffff880`0a5581c8 fffff800`02c8c629 : 00000000`0000000a 00000000`00000000 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`0a5581d0 fffff800`02c8b2a0 : fffffa80`1382d010 00000000`00000040 fffff880`0a558b60 fffffa80`11b4ba70 : nt!KiBugCheckDispatch+0x69
fffff880`0a558310 fffff880`0209456b : fffffa80`11b4ba70 00000000`00000000 fffff880`206c644d fffff880`01e352a2 : nt!KiPageFault+0x260
fffff880`0a5584a0 fffff880`01f9f316 : fffffa80`11b4ba70 00000000`c000000d 00000000`00000000 fffffa80`11b4ba70 : tcpip! ?? ::FNODOBFM::`string'+0x57b4
fffff880`0a5584f0 fffff880`01e3225e : fffffa80`11b4ba70 fffffa80`0e3878d0 fffffa80`0e3878d0 fffffa80`16012700 : NETIO!NetioDereferenceNetBufferList+0x86
fffff880`0a558520 fffff880`09b18fd3 : fffffa80`16012720 fffffa80`16012720 00000000`00000003 fffffa80`11b4bba0 : fwpkclnt!FwpsDereferenceNetBufferList0+0xaa
fffff880`0a558570 fffffa80`16012720 : fffffa80`16012720 00000000`00000003 fffffa80`11b4bba0 00000000`00000008 : mwac+0x8fd3
fffff880`0a558578 fffffa80`16012720 : 00000000`00000003 fffffa80`11b4bba0 00000000`00000008 fffff880`09b161e2 : 0xfffffa80`16012720
fffff880`0a558580 00000000`00000003 : fffffa80`11b4bba0 00000000`00000008 fffff880`09b161e2 00000000`00000008 : 0xfffffa80`16012720
fffff880`0a558588 fffffa80`11b4bba0 : 00000000`00000008 fffff880`09b161e2 00000000`00000008 00000000`00000008 : 0x3
fffff880`0a558590 00000000`00000008 : fffff880`09b161e2 00000000`00000008 00000000`00000008 00000000`c000000d : 0xfffffa80`11b4bba0
fffff880`0a558598 fffff880`09b161e2 : 00000000`00000008 00000000`00000008 00000000`c000000d fffffa80`16012720 : 0x8
fffff880`0a5585a0 00000000`00000008 : 00000000`00000008 00000000`c000000d fffffa80`16012720 fffffa80`16012734 : mwac+0x61e2
fffff880`0a5585a8 00000000`00000008 : 00000000`c000000d fffffa80`16012720 fffffa80`16012734 fffffa80`00000011 : 0x8
fffff880`0a5585b0 00000000`c000000d : fffffa80`16012720 fffffa80`16012734 fffffa80`00000011 00000000`00000000 : 0x8
fffff880`0a5585b8 fffffa80`16012720 : fffffa80`16012734 fffffa80`00000011 00000000`00000000 00000000`00000000 : 0xc000000d
fffff880`0a5585c0 fffffa80`16012734 : fffffa80`00000011 00000000`00000000 00000000`00000000 fffffa80`00000000 : 0xfffffa80`16012720
fffff880`0a5585c8 fffffa80`00000011 : 00000000`00000000 00000000`00000000 fffffa80`00000000 fffffa80`00000000 : 0xfffffa80`16012734
fffff880`0a5585d0 00000000`00000000 : 00000000`00000000 fffffa80`00000000 fffffa80`00000000 00000000`00000000 : 0xfffffa80`00000011


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Hello Sisco,

Let me suggest these steps so that each of the BitDefender & Malwarebytes programs are both cleanly re-installed.

Please try the following.

1. Fully uninstall Bitdefender 2016 Total Security via the Program and Features ( installed programs) in Control Panel.
You can press and hold the Windows-key + tap *R* key to get the RUN option.
then type in

and tap Enter. Locate *Bitdefender* in the list.  Click the line to select it. Then select Uninstall.
Be sure it finishes the uninstall.

2. Then download and run the following Bitdefender removal tool


3. Then reboot the computer. Then follow the directions below to do a clean removal of MBAM but do not reinstall just yet.

 link fo "MBAM Clean Removal Process 2x"

4. After you've removed MBAM using those directions then run the following temp file cleaner.


Please Run this tool to clear temporary files:
Please download ATF Cleaner by Atribune, saving it to your desktop.

It is used to cleanout temporary files & temp areas used by internet browsers.
Start "ATF-Cleaner.exe" to run the program.

Under *Main* choose: **Select All**

Click the **Empty Selected** button.

If you use Firefox browser, do this also:
Click Firefox at the top and choose: Select All

Click the Empty Selected button.

NOTE: If you would like to keep your saved passwords, please click No at the prompt.

If you use Opera browser, do this also:
Click Opera at the top and choose: Select All

Click the Empty Selected button.

NOTE: If you would like to keep your saved passwords, please click No at the prompt.

Click Exit on the Main menu to close the program.


Restart the computer one more time.

Then reinstall Bitdefender 2016 Total Security, check for updates. Then reboot the computer one more time now.

At this point go ahead and reinstall MBAM again and update it and activate it.

You can download the latest version from this link


Save the setup first, to your disc. After that, do a right-click on the setup-exe file and select RUN as Administrator and reply YES to allow it to proceed.

Be sure to do one Update run in our program to get the latest database updates.  Then also Restart Windows so that it is in a new session after all this.

Let us know the results.  Thank you.

Edited by Maurice Naggar
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