This was the feature that I was most looking forward to in 1903. Here are my initial thoughts: The only valid configuration values are Disable and Default? What about Enable? Why should my stored configuration files change functionality at the whim of the next release of Sandbox? (if you decide that the "default" should be disabled instead of enabled?). I too am getting an error that PowerShell won't run. On one machine I'm also getting Error 0x80070015: The device is not ready and Sandbox won't start. How do I get a bigger C: drive? 40Gb is pretty small these days when I have 200Gb on my phone. Seems like this should be a configuration parameter. One of the first things I need to script is changing the theme of the sandbox, so that I don't make a mistake and confuse one window for another. I agree with the other who said I should be able to block the host clipboard to be read-only from the Sandbox.