Windows 7 10 11 X64 21h2 Pro Oem Esd En-us Apri...

This refers to a using Microsoft’s “H1/H2” (first/second half of the year) naming convention.

Microsoft does not publish public ISOs named “Windows 7 10 11 …” on official channels (MSDN, VLSC, or OEM Portal). The string format resembles or torrent site listings. Windows 7 10 11 X64 21H2 PRO OEM ESD en-US APRI...

If you need Windows 10/11 Pro x64 English: Windows 7 10 11 X64 21H2 PRO OEM ESD en-US APRI...