title: Ubuntu app: WslRegisterDistribution failed with error 0x80070057 (incorrect parameter)
body: <p>I downloaded the Ubuntu 20.04 LTS from the Microsoft Store.<br>
  When I start the app in my Windows 10 (version 2004), I get this cryptic error:</p>
  <blockquote>
  <p>Installing, this may take a few minutes...<br>
  WslRegisterDistribution failed with error: 0x80070057<br>
  Error: 0x80070057 Falscher Parameter.</p>
  </blockquote>
  <p>(&quot;Falscher Parameter&quot; would be sth like incorrect parameter in English.)</p>
  <p>I searched the web and StackOverflow but could not find a solution or even an explanation for this error.  I'd appreciate any hint.</p>