Minimum System Requirements for Windows11
Processor: 64-bit architecture at 1 GHz or faster; Intel: eight-generation or newer AMD Ryzen 3 or better Qualcomm Snapdragon 7c or higher 
RAM: 4 GB or higher
Storage: 64 GB or larger storage device
System firmware: UEFI, Secure Boot capable
TPM: Trusted Platform Module (TPM) version 2.0
Graphics card: Direct X12 or later capable; WDDM 2.0 driver or newer
Display: High-def (720p) display, larger than 9” diagonal in size, 8 bits per color channel (or better)

You can also activate windows 10 with this key and then upgrade to windows 11

Click below link to download

https://www.microsoft.com/en-us/software-download/windows11