Windows Sandbox startup failed - Access Denied

Does Windows Sandbox terminate with Windows Sandbox Unable to Start, Error 0x80070005, Access Denied message? Some users reported that Windows Sandbox cannot be opened. If you also encounter this error, you can follow this guide to fix it.

Windows Sandbox startup failed - Access Denied

If Windows Sandbox terminates with Windows Sandbox Unable to Start, Error 0x80070005, Access Denied message, make sure you are logged in as an administrator. This type of error is usually caused by insufficient permissions. So try logging in as an administrator and see if that resolves the issue. If the problem persists, you can try the following solutions:

Run Windows Sandbox as administrator.

Disable and re-enable Windows Sandbox.

Make sure the relevant services are running.

Enable Hyper-V and other Windows features.

Check whether the Windows Sandbox policy is configured correctly.

1]Run Windows Sandbox as Administrator

Open Windows search, enter "sandbox", find the Windows Sandbox application, right-click and select the "Run as administrator" option to check whether the error is fixed.

2]Disable and then re-enable Windows Sandbox

Some users reported that disabling and re-enabling the Windows Sandbox feature resolved the issue. You can try the same thing and see if you can get rid of this error.

First, use Win R to open the Run command box, and then type optionalFeature in the Open box. Then, press the Enter button to open the Windows Features window.

Next, look for the Windows Sandbox feature and uncheck the checkbox associated with it to disable the feature. Then, press the OK button.

After that, restart your computer and open the Windows Functions window again.

Now, tick the Windows Sandbox checkbox to re-enable the feature and click the OK button. Check that the error has now stopped.

3] Make sure the relevant services are running

If the related service is not running or is idle, an error may pop up. So, if the scenario applies, you can start or restart the necessary services to fix the error. Here are the steps to achieve this:

First, use Win R to open the run command box and enter services.exe in its open box to quickly start the service application.

Now, scroll down to Hyper-V Remote Desktop Virtualization Service and double-click on it to open its properties.

In the properties window, press the Start button or click the Stop>Start button to restart the service.

Next, set the startup type to automatic.

Now, go to the Recovery tab and set the First Failure and Second Failure options to restart the service.

Afterwards, press the Apply&>OK button to save the changes.

Repeat the above steps for the following services as well:

• Hyper-V host.
• Hyper-V time synchronization.
• Virtual disk.

Hopefully you won't get the same error now.

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