Arduino: 1.6.9 (Windows 10), Board: "Arduino/Genuino Uno" avrdude: Error: Could not find USBtiny device (0x2341/0x49) Error while burning bootloader. This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.
If you get above error message while trying to burn new bootloader to your Arduino board in Arduino Studio follow those steps to resolve it.
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