Windows 10: Help with random BSODs

I recently upgraded a PC for a friend from an Intel G4560 to an MSI B450 Gaming Plus motherboard with a Ryzen 3600 processor. Ever since this upgrade he's been experiencing random blue screens, sometimes more frequently than others. I've done everything I can think of to try to fix it, from scanning the memory and upgrading drivers to swapping out hardware like the RAM and video card and hard drive, but nothing has really helped. Can anyone help me diagnose the problem?

:)

 

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.

 

Random BSOD while browsing internet

Sorry, Bitdefender is a problem: BSOD BAD_POOL_HEADER - mwac.sys - Malwarebytes Anti-Malware Help - Malwarebytes Forums

 

Random BSODs "Bad_Pool_Caller"


This BSOD happens anywhere, irrespective of BitDefender. It takes place even when the antivirus is MSE in case of Windows 7. The most common cause is an expired trial or a cracked installation. Some examples:

• Norton: Windows 7 Random bsod caused by tcpip.sys - Windows 7 Help Forums
• MBAM only: Epic BSOD error appears just after few seconds from boot Solved - Windows 7 Help Forums
• McAfee: BSOD on Internet Related Programs (tcpip.sys) - Windows 7 Help Forums
• Avast: Bad Pool Header 0x00000019 at random times - Windows 7 Help Forums
• Avira: BSOD randomly Crashes my Laptop and freezes at Memory dump 100 - Windows 7 Help Forums
• Crack: BSOD every 6 minutes, also recent freezes - Windows 7 Help Forums

We are on our way of troubleshooting. If the uninstallation and reinstallation does not work, we will take the next step.

I, in general, know what I am doing and what I am suggesting. If I feel that I am unable to control the issue, I will definitely ask for help.