Recently when working with WSL, I noticed that I was unable to access the WSL distributions file system from Windows Explorer receiving the below error

With a little bit of reading and research, this error can occur during in place upgrades for Windows 10 & Windows 11.

In order to fix this, open up a run dialog box and type “ncpa.cpl”. Hold down the alt key, click on Advanced -” Advanced Settings”

Ensure that “Plan 9” is at the top.

Now what is “Plan 9”? Put simply it is a network file system protocol developed by Bell Labs and allows WSL to communicate with the Windows File system!

Once your settings are saved, you should be able to access the file system on your WSL distributions from Windows Explorer!