Dokumentace:
https://learn.microsoft.com/en-us/windows/security/threat-protection/windows-sandbox/windows-sandbox-configure-using-wsb-file

Konfigurace nastaví 5GB RAM, sdílený adresář z Public\Downloads a automaticky spustí průzkumníka.

<Configuration>
  <VGpu>Disable</VGpu>
  <MemoryInMB>5000</MemoryInMB>
  <Networking>Disable</Networking>
  <MappedFolders>
    <MappedFolder>
      <HostFolder>C:\Users\Public\Downloads</HostFolder>
      <SandboxFolder>C:\Users\WDAGUtilityAccount\Downloads</SandboxFolder>
      <ReadOnly>true</ReadOnly>
    </MappedFolder>
  </MappedFolders>
  <LogonCommand>
    <Command>explorer.exe C:\users\WDAGUtilityAccount\Downloads</Command>
  </LogonCommand>
</Configuration>