Official Windows operating systems come with background telemetry, unnecessary fonts, and default features that consume RAM and CPU power. Modders strip these out, creating a lightweight OS that revives older hardware. 2. Pre-Integrated Drivers

An integrated environment for system repair was a major highlight. This Microsoft Diagnostics and Recovery Toolset (MSDart) came in the form of two ISO files (32-bit and 64-bit). It was designed to boot and provide a standalone recovery suite for the main OS. It included an impressive toolkit for offline OS management, including service management, event log access, driver management, registry editing, password reset, and even data recovery tools.