If the official site only offers the latest build, the third-party tool Rufus contains a script to pull older versions directly from Microsoft’s servers.
Reburn the ISO or copy the modified files to USB. This forces the installer to show "Windows 10 Pro" without asking for a key upfront. Download Windows 10 Pro 21h2 64-bit.iso Fix
After downloading, your ISO might be corrupted. The is verifying the SHA-1 hash. A genuine Windows 10 Pro 21H2 64-bit (English) ISO has these values: If the official site only offers the latest
