Error Mca Occured 651 (0x28B): Fix it With 4 Steps

To fix this issue keep Windows and your drivers up to date

Windows 11 » Repair

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by Milan Stanojevic 

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ERROR_MCA_OCCURED
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Sometimes you might get ERROR_MCA_OCCURED, and this error can be caused by your hardware and impact the stability of your PC, so let’s see how we can fix it.

How can I fix ERROR_MCA_OCCURED?

Before we start, ensure that you have the latest Windows updates installed.

1. Check the event log

  1. Press Windows key + R and type eventvwr.
  2. Once the Event Viewer opens, go to Windows Logs and select System.
  3. Look for any event that is labeled as Critical or Error that has occurred around the time of the crash.
  4. Research these issues on your own and try to resolve them or find the cause.

2. Update your drivers

  1. Visit your motherboard manufacturer’s website.
  2. Look for your motherboard model on the website and go to the Drivers section.
    select drivers
  3. Download and install the latest drivers for it.
    wireless lan driver download
  4. Do the same for GPU and other hardware.

3. Repair your system files

  1. Press the Windows key + S and enter cmd. Choose Run as administrator.
  2. Next, run the following commands: 
    sfc /scannow
    DISM /Online /Cleanup-Image /RestoreHealth
  3. Wait for the scans to finish.
  4. Once done, check if the problem is resolved.

4. Inspect your hardware

  1. Scan your memory for corruption. You can do that with MemTest86+ software.
  2. Check the PC for overheating. You can use any CPU monitoring software to do that.
  3. If you have any diagnostic tool, run it to scan your system.
  4. Check if your cables are properly connected. Consider replacing the PSU if it’s faulty.
  5. Reset your UEFI settings to the default.

These are just some of the methods you can use to fix ERROR_MCA_OCCURED. Keep in mind that this error sometimes comes with the following message: 651 (0x28B) A Machine Check Error has occurred. Please check the system eventlog for additional information.

This isn’t the only issue you can encounter, and we have guides on ERROR_DBG_EXCEPTION_HANDLED and ERROR_MCA_EXCEPTION that cover similar issues, so don’t miss them.

You might also be interested in our guide on ERROR_CORRUPT_LOG_UNAVAILABLE, so don’t miss it.

More about the topics: error, Windows 11 Fix

Milan Stanojevic

Milan Stanojevic Shield

Windows Toubleshooting Expert

Milan has been enthusiastic about technology ever since his childhood days, and this led him to take interest in all PC-related technologies. He's a PC enthusiast and he spends most of his time learning about computers and technology. Before joining WindowsReport, he worked as a front-end web developer. Now, he's one of the Troubleshooting experts in our worldwide team, specializing in Windows errors & software issues.

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