WinBtrfs: an open-source btrfs driver for Windows

WinBtrfs is a Windows driver for the next-generation Linux filesystem Btrfs. A reimplementation from scratch, it contains no code from the Linux kernel, and should work on any version from Windows XP onwards. It is also included as part of the free operating system ReactOS.

WinBtrfs GitHub page

If you're running a distribution that defaults to Btrfs, or you actively choose to use it on other distributions, and you also happen to dual-boot Windows because your boss makes you use some garbage corpo software, this driver will make your setup a bit easier to manage.