MSI fixes BSOD bug causing PCs to show ‘UNSUPPORTED_PROCESSOR’ error

MSI and Intel worked together to fix an irritating bug that could cause PCs to crash.

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What you need to know

What you need to know

Last month abug affecting MSI motherboardscaused some PCs to crash and show the “Blue Screen of Death” (BSOD). Microsoft concluded that the issue, which made the error message “UNSUPPORTED_PROCESSOR” appear, was not caused by the August 2023 preview update of Windows 11. The root cause of the problem has since been discovered by a joint effort between MSI and Intel, and a fix for the bug will roll out this month.

The bug affects some systems with MSI’s Intel 700 and 600 Series motherboards. The root cause of the problem is related to a firmware setting of Intel Hybrid Architecture, asexplained by MSI. Only systems with a 13th Gen Intel Core i9 paired with specific versions of Windows will see the Blue Screen of Death. The following versions of Windows are affected:

A BIOS update will ship by the end of September that addresses the issue.

“The new BIOS coming will include an update on the Intel CPU uCode which will prevent any more messages regarding the “UNSUPPORTED_PROCESSOR” issues. This upcoming update will correspond to both 13th-generation and newer ones,” said MSI.

“There will be more BIOS available to download on MSI’s official website for all Intel 700 and 600 Series models this week and all BIOS release will be available by the end of September.”

While more BIOS updates will ship by the end of the month, several are already available through MSI. The company has a complete list of BIOS updates available as well as direct links to those updates in itsrecent news piece.

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Sean Endicott is a tech journalist at Windows Central, specializing in Windows, Microsoft software, AI, and PCs. He’s covered major launches, from Windows 10 and 11 to the rise of AI tools like ChatGPT. Sean’s journey began with the Lumia 740, leading to strong ties with app developers. Outside writing, he coaches American football, utilizing Microsoft services to manage his team. He studied broadcast journalism at Nottingham Trent University and is active on X @SeanEndicott_ and Threads @sean_endicott_.