I can help you find a safer, legitimate source or alternative.

: Users will still need a valid Windows 7 license key to activate their installation.

Select your preferred architecture (x86 or x64) from the setup menu. Follow the on-screen prompts to complete the installation.

for "untouched" (original) ISOs, which are safer than "pre-activated" or "modded" versions. Virtualization : Run Windows 7 inside a Virtual Machine (using VirtualBox