Hi @Emon Islam ,
Microsoft has confirmed that Windows 11 will only officially support 8th Gen and newer Intel Core processors, most likely because they have an integrated TPM (Trusted Platform Module) chip.
Windows 11 Supported Intel Processors
https://learn.microsoft.com/en-us/windows-hardware/design/minimum/supported/windows-11-supported-intel-processors
Please also note that Windows 11 is currently not supported in the Q&A forums, the supported products are listed over here https://learn.microsoft.com/en-us/answers/products.
If you have any further questions, you may ask the experts in the dedicated Windows 11 forum over here:
https://answers.microsoft.com/en-us/windows/forum/windows_11
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Leon