Thank you,
Drivers from Intel starting with 10 are for WDDM 1.3.
Cloning across graphics adapters was only optional in WDDM 1.3 and was made compulsory in WDDM 2.0, the following version.
You can check what I am saying by uninstalling your Intel graphics driver.
It will use the Microsoft Basic Graphics adapter driver which is compliant, and will allow you to clone across graphics adapters.
Kind regards,
Alban
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