KB4497936 breaks Windows Sandbox, hotfix coming in June

Milan Stanojevic
by Milan Stanojevic
Deputy Editor
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Windows Sandbox starting issues

The story of the bugs affecting Windows 10 is not new. Windows 10 May 2019 Update brings a never-ending series of issues.

Microsoft recently confirmed the fact that Windows 10 cumulative update KB4497936 is triggering issues with Windows Sandbox.

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The company says that Slow, Fast and Release Preview ring Insiders may experience Windows Sandbox launching issues. Microsoft listed the bug on its support page in the following manner:

“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.”

The acknowledgement was made right after many users started to report the issue online.  This bug is only affecting Windows 10 May 2019 (version 1903).

Therefore, if you are one of those who ran into a similar issue it is recommended that you can simply uninstall the update.

The uninstall process will bring back Windows Sandbox. Microsoft didn’t suggest any workaround for the issue.

However, the tech giant says that it is currently working to resolve the issue and promises to release a patch in late June.

What’s new in Windows Sandbox?

Cumulative update KB4497936 brings important security updates for Windows 10. This update patches your computer against the Microarchitectural Data Sampling vulnerability. Furthermore, this update also resolves an issue with some gov.uk sites

Microsoft introduced Windows Sandbox specifically in the latest Windows 10 version 1903. Windows Sandbox helps users to avoid any potential attacks.

They can use it to run their applications in a secure environment. This environment works similar to a virtual machine. Therefore no one can get access to sensitive information stored on your device. 

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