MSI's 600/700 series motherboards have been experiencing widespread BSODs in Windows 11 with "Unsupported CPU" being the root cause. The issues were first discovered by the Verge and the company has now responded with its official workaround.
MSI Quickly Offers Temporary Workaround For "Unsupported" CPU BSOD On Its Motherboards
Detailing the crashing incidents, several Reddit users came onto the platform, expressing frustration with frequent BSODS (Blue Screen of Death) popups. The "UNSUPPORTED_PROCESSOR" error message suggests incompatibility with the onboard processor, but the root cause of the issue is still unknown. For a temporary fix, Microsoft did remove the KB5029351 update from the systems, but it is still downloadable for those who haven't updated their Windows 11 yet.
It is believed that the BSODS is related to MSI's latest BIOS update, which brought in support for Intel's 14th Gen Core Raptor Lake Refresh CPUs on Intel 600/700 motherboards. It could be that Windows 11 isn't ready for next-gen CPU compatibility yet, which explains the error message. However, today, MSI did release a statement suggesting a workaround for those annoyed by the problem:
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.
Temporary Workaround
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.
Such issues aren't new since the delay in next-gen support between the OS and BIOS mainly causes it. However, MSI and Microsoft have yet to release a permanent fix, which we hope they do soon.
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