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Hi,
I am having the same issue with DE0 board (Cyclone III). Quartus II v12.0 SP2 does not detect the board, despite the drivers were correctly installed.
I suspect that old versions of Quartus II don't have support for W10. However, if anyone know the oldest version of Quartus II that supports W10 I would appreciate it.
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I have tried Quartus16.0 Prime lite web edition and I got the same answer from the TERASIC demo code : DE0_Nano_ControlPanel. Nevertheless it seems that QUARTUS 16.0 directly recognizes the board DEO-Nano: QUARTUS PRIME LITE EDITION 16.0 >Tools >>Programmer >> Hardwaresetup >> USB-Blaster double click to validate.
To be continued!