How to unlock bootloader on htc m8 smartphone using ADB?

Question

Command line

I'm trying to unlock htc m8 from this state. Through ADB in fastboot mode, the phone sees, and when you type adb devices, it does not determine anything. adb driver installed. What else does he lack?

Answer 1

Here they write that one of the options for the problem may be a newer version of Windows than 7.