+See also <https://github.com/microsoft/WSL/issues/5014#issuecomment-692432322>
+
+### Error: Required Feature Not Installed
+
+> Installing, this may take a few minutes...
+>
+> Error: 0xXXXXXXXX The virtual machine could not be started because a required
+> feature is not installed.
+
+It may be that your computer does not support virtualization because:
+
+- it lacks hardware support in the CPU for VTx
+- VTx is disabled in the BIOS or EFI
+- Virtualization has disabled in Windows 10
+
+You should switch back to WSL 1 until you solve this problem:
+
+```pwsh
+wsl --set-default-version 1
+wsl --list --verbose
+wsl --set-version Ubuntu-20.04 1
+```