MSI has today released a statement regarding Blue Screen of Death “UNSUPPORTED_PROCESSOR” errors on its 600/700 series Intel motherboards with the latest Windows 11 KB5029351 update.
If you’re using an MSI 600 or 700 series motherboard on Windows 11 it is best advised to avoid updating to the Windows update KB5029351 Preview as several users have reported a blue screen of death error which features the stop code “UNSUPPORTED_PROCESSOR”. Both Microsoft and MSI are aware of the issue and are investigating it. The issue is currently also listed on microsoft.com which also states that the faulty update may automatically uninstall itself to allow Windows to boot up following a crash. Additionally the Microsoft page does not explicitly state MSI motherboards and it is unclear whether this issue is exclusive to MSI boards.
MSI has received several reports of users encountering a Blue Screen of Death that has an error message that reads “UNSUPPORTED_PROCESSOR” with MSI’s 600/700 series motherboards after installing the Windows 11 update, KB5029351 Preview.
Both MSI and Microsoft are aware of the “UNSUPPORTED_PROCESSOR” error and have begun investigating the root cause. While the investigation is underway, we recommend that all users temporarily refrain from installing the KB5029351 Preview update in Windows. We will keep you updated on the progress of our investigation.
If you have already encountered this issue, KB5029351 might automatically be uninstalled to allow Windows to restore to normal. However, if KB5029351 is not automatically uninstalled, we recommend reverting your BIOS to the previous version and uninstalling KB5029351 from Windows.
If you are unsure of how to restore to older BIOS, this video link will help you on how to flash BIOS on MSI motherboards.
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