According to Microsoft’s instructions, only supported processors can use Windows 11. Therefore, Microsoft still lists all supported processors in the support document.
When the user uses the PC health check tool for testing, this tool will determine whether the processor used by the user’s device meets the requirements and can be upgraded.
But it seems that the PC health check tool is not to detect whether the processor is in the supported list. In fact, Microsoft manually maintains a list of unsupported processors so that PC health check tools can be compared.
Twitter user @never_released posted screenshots showing that the Intel Pentium 4 processor released in 2000 passed Microsoft’s inspection, and this processor also happens to meet the requirements of dual-core.
But it is not only dual-core that meets the requirements. Obviously, Microsoft did not expect that there will be users who will try to install Windows 11 on the CPU 20 years ago.
Therefore, although this processor is not in the list of supported CPUs, it is also not in the list of unsupported CPUs, so it passed the inspection smoothly.
So it can be seen from here that the PC health check tool compares the unsupported list instead of the supported list. I have to say that Microsoft’s operation is very surprising.
Of course, only processor support is not enough. The computer health check tool detects that this device does not have a TPM 2.0 module and a secure boot function.