Windows 10: Sandbox Not Launching after lnstalling...

I'm getting this error :SourceWindowsSandboxRemoteSessionSummaryStopped workingDate‎30/‎06/‎2025 13:26StatusReport sentDescriptionFaulting Application Path: C:\Program Files\WindowsApps\MicrosoftWindows.WindowsSandbox_0.5.1.0_x64__cw5n1h2txyewy\WindowsSandboxRemoteSession.exeProblem signatureProblem Event Name: APPCRASHApplication Name: WindowsSandboxRemoteSession.exeApplication Version: 0.5.1.0Application Timestamp: 67d40000Fault Module Name: KERNELBASE.dllFault Module Version: 10.0.26100.4202Fault Module&nbs

:)

 

Microsoft sandbox stoped working

Hi,



Thank you for writing to Microsoft Community Forums.



Please be informed that our developer team is aware of the issues with Sandbox and is working on resolving it. We do not have an ETA as of now, however I encourage you to send a feedback to our developer team via
Feedback hub. As a suggestion you can try disabling and enabling
the sandbox to check if that works. Please follow the steps mentioned below:

1. Open Control Panel.
   
2. Then click on all Control Panel Items.
   
3. Then click on Programs and features.
   
4. Then on the left hand side, click on Turn Windows features on or off.
   
5. Then uncheck the option: Windows Sandbox.
   
6. Then restart your computer.
   
7. After restart, please enable it and check if the sandbox is working.
   

Also make sure that you meet all the requirements for Windows Sandbox.
Your patience and understanding will be appreciated in this matter.



Regards

 

Fix for Sandbox

Microsoft has acknowledged this issue now:

Windows Sandbox may fail to start with error code “0x80070002”Windows Sandbox may fail to start with "ERROR_FILE_NOT_FOUND (0x80070002)" on devices in which the operating system language is changed during the update process when installing Windows 10, version 1903.


Affected platforms:

• Client: Windows 10, version 1903

Next steps: We are working on a resolution and estimate a solution will be available in late June.

 

Vmmem process will not be killed. Windows sandbox.

Hi,

Thank you for writing to Microsoft Community Forums.

We understand your concern as you are unable to stop the Windows Sandbox process.
Please try disable and re-enable sandbox to check the issue.

1. Press Windows + R key, then type appwiz.cpl and click Ok.
2. Click on Turn Windows features on or off from the left pane.
3. Uncheck the box beside Windows Sandbox and click
   OK.
4. Restart the PC and check.

If the issue still persists then I would suggest you to post your query in
TechNet forums, where we have experts and support
professionals who are well equipped with the knowledge on Sandbox to assist you with the appropriate troubleshooting steps.

Regards,

Aditya Roy

Microsoft Community – Moderator