windows-sandbox-internet-enabled.wsb

<Configuration>
<VGpu>Disable</VGpu>
<Networking>Enable</Networking>
<MappedFolders>
<MappedFolder>
<HostFolder>C:\Users\YOURUSER\Work\WindowsSandbox</HostFolder>
<SandboxFolder>C:\Users\WDAGUtilityAccount\Work\WindowsSandbox</SandboxFolder>
<ReadOnly>true</ReadOnly>
</MappedFolder>
</MappedFolders>
<LogonCommand>
<Command>C:\Users\WDAGUtilityAccount\Work\WindowsSandbox\sandbox-init.cmd</Command>
</LogonCommand>
</Configuration>