MSI brings a fix for Windows 11’s ‘UNSUPPORTED PROCESSOR’ error

Last month, Windows 11 update KB5029351 led to the occurrence of the “UNSUPPORTED_PROCESSOR” error on certain devices. This error message was displayed on a blue screen of death (BSOD) and indicated that the device’s processor was incompatible with the update.

The “UNSUPPORTED PROCESSOR” blue screen of death (BSOD) error occurs when the computer’s processor is not supported by the BIOS. This happens if users have a newer processor than what is supported by the motherboard, or if users have a processor that has been overclocked.

Reportedly, MSI has released a fix for the “UNSUPPORTED_PROCESSOR” error that some users were experiencing after installing the KB5029351 preview update for Windows 11.

MSI brings a fix for Windows 11's 'UNSUPPORTED PROCESSOR' error


The fix for this Windows 11 error is available in the latest BIOS update for MSI motherboards

According to MSI, the “UNSUPPORTED_PROCESSOR” error code is caused by a specific Intel Hybrid Architecture firmware setting on systems with only 13th Gen Intel Core i9 processors and specific versions of Windows.

Regarding some of our users receiving an error message of “UNSUPPORTED_PROCESSOR” upon Blue Screen of Death with MSI’s Intel 700 and 600 Series Motherboards. MSI and Intel have been working hard these several weeks to come up with a solution together and have found the root cause of the BSOD issue which is regarding the firmware setting of Intel Hybrid Architecture. It is determined that the BSOD will only affecting Intel’s 13th Gen Core i9 paired with the following versions of the Windows operating system (OS):

  • Windows 11 22H2 (OS Build 2221.2215) KB5029351
  • Windows 11 22H1 (OS Build 22000.2360) KB5029332
  • Windows 10 22H2 (OS Build 19045.3393) KB5029331


MSI brings a fix for Windows 11's 'UNSUPPORTED PROCESSOR' error

MSI has released a BIOS update that intends to solve the issue of “Unsupported Processor” error messages causing BSODs on certain 600 and 700 series motherboards when used with specific CPU models and Windows OS. The update will update the Intel CPU microcode (uCode) and is expected to resolve the issue effectively.

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. 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.

MSI motherboard update links

Please update your MSI motherboard using the links below:

Motherboard Model BIOS update link (official website)
MEG Z790 ACE Link
PRO Z790-A WIFI Link
PRO Z790-P WIFI Link
PRO Z790-P Link
PRO Z690-A WIFI Link
PRO Z690-A Link

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