Windows 11 only supports 64-bit architecture. To install it, your PC must meet these minimum specs:
Some legacy applications or hardware drivers may perform differently on early builds.
from Microsoft’s official site:
After downloading the 64-bit ISO file, you’ll need to create installation media. Here is the simplest method using (free, open-source).
Warning: Any website claiming "Windows 11 21H2 ISO direct from Microsoft" that asks for your credit card or forces you to complete a survey is fraudulent. Download Windows 11 21h2 Iso File 64-bit Microsoft
Developers often use 21H2 ISOs to test software across all major Windows 11 versions. Official System Requirements (64-bit)
Start with the official Microsoft Windows 11 download page, then use the Fido method to step back to 21H2. Install responsibly, keep your system secure, and enjoy the clean, modern interface of Windows 11. Windows 11 only supports 64-bit architecture
Here are the only two legitimate methods to get the original Windows 11 21H2 64-bit ISO: