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What causes "ObjectStore internal error Unknown Windows OSVERSIONNINFO::dwMinorVersion value: 2 when OSVERSIONINFO:: dwMajorVersion = = 6" (err_internal)" when launching Unity Pro?

Published date: 26 November 2019

This error occurs when running Unity Pro on Windows 8 or Windows 8.1 or Windows 10.

Right click on the Unity Pro icon or executable and go to <Properties><Compatibility>.
Choose 'Run in Windows 7 compatibility mode' and 'Run as administrator'.

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