If you are looking for a highly compressed ISO because your computer has weak hardware, switching to a lightweight Linux distribution is a much better choice than installing a compromised version of Windows 7. Consider these fast, secure, and free options:
This is the most critical step for security. Before you use any downloaded ISO, you verify its authenticity. A "hash" is a unique code generated from the file's contents. If even one bit of data in the ISO has been changed (for example, by malware), the hash will be completely different.
Windows 7 remains one of the most beloved operating systems in Microsoft's history. Despite reaching its end of life in January 2020, many users still seek out Windows 7 ISO files for legacy software compatibility, older hardware, or personal preference.
However, downloading these files poses severe risks to your computer, data, and privacy. The Reality of "Highly Compressed" Operating Systems
The concept of a "highly compressed Windows 7 ISO" is largely a myth. The ISO format itself is uncompressed, and any significant reduction in size can only be achieved by removing essential operating system components, rendering the OS either unusable or dangerously insecure.
Inability to install certain software due to missing system files. 3. Stability and Performance Issues