OS Mockups

OS Mockups are mockups of fictional operating systems. It is Windows Never Released (WNR, fictional Windows OSs) and Never Released Operating Systems (NROS, fictional non-Windows OSs) combined into the one thing. It is unknown exactly who started the cult, although the first person to create a video under OS Mockups was Neptune98. However, this video was scrapped and later replaced with a WNR due to Nept losing interest and time. Other people would go on to create OS Mockups videos, along with OS Mockup Compilations/Collections.

There is a kit to produce OS mockups known as The OS Mockup Kit. It is split into four parts, and contains many graphics and sounds from different OSs, though it still has a focus on Windows.