Windows Sandbox failed to start, Error 0x80070015, The device is not ready
If you receive error code 0x80070015 for Windows Sandbox, these suggestions may help you resolve the issue: 1] Enable all the Services required by Sandbox Open the Windows Services Manager and make sure that all of these mentioned services are running and have the Startup type as given below. You may Restart these Services in the given order: Once done, just try running Windows Sandbox again and see. 2] Run Windows Update
You can Check for updates. You need to get all the released fixes from Microsoft. In this process, if any of the supporting drivers are not up to date, you will get updates downloaded and installed on your computer too. I hope you can use Windows Sandbox without any errors now. Related reads: