Following are official System requirements for your PC to run Windows 11
These are the basic requirements for installing Windows 11 on a PC. If your device does not meet these requirements, you may not be able to install Windows 11 on your device and might want to consider purchasing a new PC. If you are unsure whether your PC meets these requirements, you can check with your PC Original Equipment Manufacturer (OEM) or, if your device is already running Windows 10, you can use the PC Health Check app to assess compatibility.
|Processor:||1 gigahertz (GHz) or faster with 2 or more cores on a compatible 64-bit processor or System on a Chip (SoC)|
|RAM:||4 gigabyte (GB)|
|Storage:||64 GB or larger storage deviceNote: See below under “More information on storage space to keep Windows 11 up-to-date” for more details.|
|System firmware:||UEFI, Secure Boot capable|
|TPM:||Trusted Platform Module (TPM) version 2.0|
|Graphics card:||Compatible with DirectX 12 or later with WDDM 2.0 driver|
|Display:||High definition (720p) display that is greater than 9” diagonally, 8 bits per colour channel|
|Internet connection and Microsoft accounts:||Windows 11 Home edition requires internet connectivity and a Microsoft account to complete device setup on first use.Switching a device out of Windows 11 Home in S mode also requires internet connectivity. Learn more about S mode here.For all Windows 11 editions, internet access is required to perform updates and to download and take advantage of some features. A Microsoft account is required for some features.|
If running PC Health Check app to assess compatibility you are still not sure why your PC is not meeting the requiremnt or what exact crietera is not satsfied you can try WhyNotWin11 an open source software which will give you exact details.