Below are the reasons explain why your computer needs to meet this requirement. So it is strict to CPU, system firmware, and adds TPM requirements which is not required in previous systems, even in Windows 10. In fact, the system requirements for Windows 11 are much higher than the previous system requirements and it's aimed to improve security. Why need to meet Windows 11 update minimum system requirements? In addition, Microsoft Account is required to use certain features. Among them, Windows 11 Home edition requires an Internet connection and a Microsoft Account to complete device setup on first use.

Internet connectivity/MSA: Internet connectivity is necessary to perform updates, and to download and use some features.

Display: High definition (720p) display, 9' or greater monitor, 8 bits per color channel.

Graphic card: Compatible with DirectX 12 or later, with a WDDM 2.0 driver.

TPM: Trusted Platform Module (TPM) version 2.0.System firmware: UEFI, Secure Boot capable.Storage: 64GB and greater available storage is required to install Windows 11.For Intel, it requires eighth-generation core and above (certain high-end seventh-generation core are also supported) For AMD, it requires Ryzen 2 and above For Qualcomm, it requires Snapdragon 7c and above. CPU: 1 gigahertz (GHz) or faster with two or more cores on a compatible 64-bit processor or system on a chip (SoC).

On October 5, 2021, Microsoft officially releases Windows 11, and it says you need to meet the minimum system requirements for Windows 11 before free upgrade from Windows 10. How to bypass system requirements for Windows 11.

Details and solutions about minimum system requirements for Windows 11.How to check if your computer is compatible.Why need to meet Windows 11 update minimum system requirements?.

Windows 11 system requirements checker