GitHub - maharmstone/btrfs: WinBtrfs - an open-source btrfs driver for Windows
WinBtrfs v1.9
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.
If your Btrfs filesystem is on a MD software RAID device created by Linux, you
will also need WinMD to get this to appear
under Windows.
See also Quibble, an experimental
bootloader allowing Windows to boot from...
Read more at github.com