Windows Zero

Windows Zero is the final OS before Microsoft shuts down altogether and therefore the Windows series ends.

It is the largest OS so far, having 1K+ applications to use upon first start. Heck, even a scrolling home that allows you to store more downloads.

It was rumored that in 8192 it will shut down, but since Microsoft shut down and disowned it is proven to permanently live on.

It, despite permanently living on, actually does have an EoL screen, but it's unused and can only be found in the files. It has a far more ominous pallete than others, along with horrifying eyes staring at you, plus distant shrieks can be heard within the background. It is nicknamed Windows Infinite.

If you say "Not last.", then shut up. Not because I said it's the last. it's because this is MY fanwork, not yours.