Just a quick heads-up:

65FCE0F445D9BF7E78E43F17E441E08C63722657 File Size: Approximately 2.38 GB (2,564,476,928 bytes)

The exact SHA-1 hash for the official MSDN release of is well-documented (e.g., SHA1: 0xBF4667DCF971B6E9C54857A9F26B42E2E2F131A2 for the official ISO). Any file with a different hash is either a custom slipstreamed version or potentially malicious.

Windows 7 Ultimate could boot from a .vhd file, enabling easy testing of multiple configurations without partitioning.

Before installing Windows 7 Ultimate with SP1 x86 DVD ISO, ensure your system meets the minimum requirements:

If you are running old hardware, a lightweight Linux distribution (like Lubuntu) or a modern version of Windows 10/11 is generally a safer and more functional choice.