Windows Sandbox failed to start, Error 0x80070057, The parameter is incorrect
If you receive this error message, you should try out the following suggestions to fix error 0x80070057 for Windows Sandbox:
1] Run Windows Update
Maybe Microsoft has just released a fix for this error. We, therefore, recommend that you install all updates first.
You can Check for updates using the Windows Update utility, and that should give you all the latest offerings from Microsoft to make your computer better. Also, if any of your supporting drivers are not up to date, you will get updates downloaded and installed on your computer too.
2] Ensure that Windows Sandbox is supported on your system
Windows Sandbox relies on various Windows 10 components that are mainly related to Virtualization and Hyper-V. If even one of them is misconfigured, it may result in errors like this. You need to make sure the following things:
Virtualization is enabled.Hyper-V is enabled.Your CPU supports SLAT.
Once done, reboot your computer normally, and that should troubleshoot the error. I hope this helped in fixing the error. Related reads:
