Right.
Test by disabling Windows Sandbox, restarting with a clean boot, and then enabling Sandbox again:
-Clean startup:
Clean boot is for you to determine if a background program is interfering with your system or to optimize your system load.
For clean boot follow the steps below:
On the Desktop, press the Windows + R keys simultaneously to open Run;
In the Run Menu type msconfig command and click OK to open System Configuration;
On the Services tab, check Hide All Microsoft Services and Click Disable All;
Click Apply and OK;
Restart the computer.
NOTE:This procedure disables all third-party services and programs. You can later, if the problem is solved in this way, enable the programs and services that will start with Windows, selectively, instead of keeping them all disabled. If the problem returns after activating the startup of a specific service or program, the problem is exactly in the startup of this software and it is recommended to remove it.
Yours sincerely,
Claudeir