Here's what MSI has to say on Windows 11 ‘unsupported processor’ update error
August 25, 2023
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MSI has acknowledged that some Windows 11 users with MSI motherboards are facing issues after installing the latest update. Microsoft is also investigating if the problem is caused by their own update. The specific cause of the issue is unknown, but it is believed to be related to MSI's latest BIOS updates. MSI has advised users not to install the KB5029351 Preview update.