Do this if Fastboot not working or detecting your Android device on Windows 11/10. Fastboot binary is a protocol that is used for sending commands to your phone over USB.

Android phones have a recovery mode that lets you access the bootloader and wipe data if you're unable to normally boot your phone.

Both of these tools come with the Android SDK, however that’s an extremely large download that, frankly, most users who are interested in ADB and fastboot don’t need.