ubuntu2004.exe The specified network name is no longer available.

If you are running ubuntu 20.04 on Windows Server using WSL 1 you might get this error if you remove the Ubuntu filesystem folder, but WSL is still registered to a live distribution.

To fix, get a list of the registered distributions:

wslconfig /l /all

Windows Subsystem for Linux Distributions:
**Ubuntu-20.04 (Default)**

Unregister this distrubution

wslconfig /u Ubuntu-20.04  
Unregistering…

Then re register the distribution

ubuntu2004.exe  
Installing, this may take a few minutes…  
Please create a default UNIX user account. The username does not need to match your Windows username.  
For more information visit: https://aka.ms/wslusers  
Enter new UNIX username:

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