Windows 7 Dark Edition 2015 X64bit By Crash King Teamos Hkrg Rar [best] -

Unnecessary background services and telemetry are often disabled to reduce RAM and CPU usage.

If you are looking to achieve a dark aesthetic or improve performance on an older machine, consider these safer alternatives:

If you are looking for a dark experience on a supported OS, you can natively Personalize Colors in Windows 10/11. Microsoft Support for this specific ISO or a modern alternative that mimics its look?