Hi Demetrigaming,
Have you tried the latest PC Health Check app?
If not get it from here https://www.microsoft.com/en-us/windows/windows-11-specifications
Many users have stated this and if you have checked up on all the requirements like processor too then you can use the update assistance tool to get the Windows 11. Make sure you have 8th gen processors.
Windows 11 supported Intel processors
https://learn.microsoft.com/en-us/windows-hardware/design/minimum/supported/windows-11-supported-intel-processors
On the other note you can upgrade \ install Windows 11 on devices that don't meet minimum system requirements as below Microsoft article , but that is not recommended.
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