Windows 15X

Windows 15X (codenamed Polar White) is a minor update to Windows 15. The only catch is that Windows 15X's OS family is Core OS.
Windows 15X was the last version to belong at Windows Core OS Family, and the rest of the versions will belong to Windows Quantum Core OS Family.
== New features/upgrades ==
* Smarter Copilot
* Better stability
* Easy to use
* Fewer bugs
== Builds ==
Build 10342: Fewer bugs, easier to use.
Build 11487: Better stability.
Build 12814: Smarter Copilot, easier to use.
Build 13872: Fewer bugs, better stability.
Build 14825: Better stability.
RTM: Smarter Copilot.
48H2: Fewer bugs, better stability, easier to use.
Category:Fictional Windows versions