MSI motherboards causing Windows blue screens

MSI has acknowledged that some of their motherboard models are to blame for the recent spike in blue screens of death (BSODs) error experienced by Windows customers. All customers have been urged by MSI to delay installing the August 2023 preview upgrades on Windows computers for the time being. Users should update BIOS to an earlier version, and remove any optional Windows updates if they have already upgraded system and are still experiencing blue screens.

MSI issued a workaround that can temporarily fix the issue, which began after Microsoft rolled out the OS update on Aug. 22.  

The KB5029351 update is designed to offer performance improvements, but for PCs running select MSI motherboards, it appears to trigger a Blue Screen of Death with an “UNSUPPORTED_PROCESSOR” error message.

MSI now says based on user reports the problem affects customers who own Intel 600 and 700 series MSI motherboards. “Both MSI and Microsoft are aware of the 'UNSUPPORTED_PROCESSOR' error and have begun investigating the root cause,” the company’s statement adds. “While the investigation is underway, we recommend that all users temporarily refrain from installing the KB5029351 Preview update in Windows.”

“However, if KB5029351 is not automatically uninstalled, we recommend reverting your [motherboard’s] BIOS to the previous version and uninstalling KB5029351 from Windows,” MSI said.