Please reference Windows 10 Notice – What Do Daktronics Customers Need To Know?, DD3101782 for official stance and reasons behind not upgrading at this time.
After the latest update to Microsoft Windows 10 upgrade program Windows will automatically schedule a time to upgrade to Windows 10. Clicking "OK", upgrade now, or clicking the top right "X" will indicate you agree to the time scheduled. Please follow below steps to not upgrade to Windows 10.
KB ID: DD3366560
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