Windows 10: BSOD WINLOGON_FATAL_ERROR c000021a

I got a bsod a few days ago on startup while loading windows and had to do a system restore in order to be able to use my computer again.I thought it was due to some network settings I messed with because the PC would boot into safe mode fine, but if I tried to boot into safe mode with networking it would BSOD again.The first BSOD I got the error code was 0xc000021aToday I got a BSOD again. I have no idea why. I did the same thing, performed a system restore and things were working again.The only common thing I did before either BSODs happened was installing C++ redistributable 2022. Both time

:)

 

Random BSOD while browsing internet


BitDefender is nothing special. mwac.sys causes BSODs anywhere.
A tiny documentation can be found here: Solved Random BSODs - Windows 10 Forums
In that very thread, the suggested action apparently worked.

The storage and network filters of any third party antivirus can cause BSODs. Neither MBAM nor BitDefender is any special. For a regular antivirus, it may be shifted to an alternative; but MBAM has no alternative. So a clean install of the said program is the most feasible first step.
As far as the first step is not failing, it is better to not think for the second step. Because the BSODs are not universal, failure at the first step is not universal; and success at the second step is also not universal.
That is why I posted that my suggestion may work, or may not. Let us see where it goes.

 

7 different BSoD

Hey guys,

I have a serious problem. I make it as short as possible:

• system runs 100 % fine with the 10.12
• updatet to Catalyst 11.1 -> BSoD
• updatet to 11.1 Hotfix -> BSoD
• rollback to 10.12 -> BSoD
• removed ALL AMD files manually, installed 10.12 -> BSoD

• Temps are fine
• no sfc /scannow errors
• no chkdsk errors
• Prime, Furmark all fine
• regardless what driver I install -> BSoD
• I did no hw changes, no OC

Here are my BSoDs I receive:

• 0x0000010e
• 0x1000007e
• 0x0000007e
• 0x0000004e
• 0x0000003b
• dxgmms1.sys
• PFN_LIST_CORRUPT

They all refer to the GPU of course ...

From now on I receive a BSoD every time I try to play a game (especially BC2 and SC II) even if I completely remove the old driver and make a clean install.
Apparently the 11.1 damaged my system irreparable.

Any advice or info would be very much appreciated *Smile

 

BAD_POOL_HEADER BSOD, Dump File attached


Hi Groggubus,

Welcome to the 10forums

Please remove / disable items from the startup in taskmanager
These programs could interfere with the boot process giving you trouble and increase the boot time.

Daemon tools, Alcohol 120% and Power Archiver Pro uses SCSI Pass Through Direct (SPTD), which is a well known cause for BSOD's.
Please remove Daemon Tools and run the SPTD pass through remover.

1. Uninstall Daemon Tools
2. Download the SPTD standalone installer and follow these steps:
   • Double click the executable to open it
   • Click on the button shown below

If the button is grayed out, like in the image, there is no more SPTD installation on your system, and you can close the window

Please follow this suggestion for the BSOD

1. Please open BitDefender and go to the modules,
2. Go to the firewall settings,
3. Uncheck 'Block port scans in the network',
4. Reboot your system <-- IMPORTANT