The most common method, which mimics an Original Equipment Manufacturer (OEM) BIOS signature to trick Windows into thinking it is on a licensed machine.
If you must use Windows 7, it is safer to download an "untouched" official ISO and update it yourself: How to get updated windows 7 sp1 iso? windows-7-ultimate-sp1-update-2021-preactivated-iso-gratis
Post-EOL security patches, often sourced from the Microsoft Update Catalog or through third-party tools like Simplix UpdatePack7 , which integrates updates directly into the installation media. The most common method, which mimics an Original
A full write-up on "pre-activated" ISOs involves understanding their composition, security risks, and the technical methods used to create them. What is a "2021 Update" ISO? and Internet Explorer 11 pre-installed.
Many include .NET Framework 4.8, DirectX, and Internet Explorer 11 pre-installed. Understanding "Pre-Activated" ISOs
Newer ISOs often include USB 3.x and NVMe drivers to allow installation on hardware that originally didn't exist when Windows 7 was released.