Windows 7 Lite 600mb 'link' -

Because these ISOs are modified by anonymous users, malicious actors sometimes embed keyloggers, cryptocurrency miners, or backdoors. Always scan the ISO with multiple antivirus engines (VirusTotal) or run it in an isolated VM first.

If you need a light OS for old hardware: Windows 7 Lite 600mb

These Lite builds are usually based on Windows 7 SP1, which stopped receiving security updates in January 2020. Without the Extended Security Updates (ESU), you are vulnerable to any exploit discovered in the last 5+ years. Because these ISOs are modified by anonymous users,

These versions are optimized for "ancient" hardware, such as netbooks from the Windows XP era. Windows 7 Super Lite Edition - Overview & Demonstration Without the Extended Security Updates (ESU), you are

Creating your own 600 MB ISO takes 2 hours but guarantees no malware and full legality.

Despite the aggressive size reduction, a well-crafted Windows 7 Lite 600mb ISO keeps the essentials intact: