https://www.omgubuntu.co.uk/2019/02/access-linux-files-from-windows-explorer-wsl
https://en.wikipedia.org/wiki/9P_(protocol)
Users of the Windows Subsystem for Linux (WSL) will finally be able to access Linux files from Windows’ Explorer.
Microsoft confirms that the oft-requested ability to access the Linux file system from Windows will arrive as part of the Windows 10 Version 1903 update later this month.
“The next Windows update is coming soon and we’re bringing exciting new updates to WSL with it! These include accessing the Linux file system from Windows, and improvements to how you manage and configure your distros in the command line,” they say.
Ложка дёгтю, чтобы не расслаблялись.
The “downside” to the feature (for now) is that the WSL distro has to be running inorder to access files.
Why? Because the feature works using the 9P protocol file server, with Windows acting as the client and the WSL init loading a 9P server. This supports Linux metadata, including file/folder permissions.
Microsoft says it plans to support accessing Linux files when WSL isn’t active in the future.