The Android Bootloader Interface (ABO) Windows driver is used for communication between your Android device and your computer during the bootloader or recovery mode. The bootloader is a piece of software that runs before the operating system on an Android device, and it's used to load the OS or enter recovery mode, where you can perform tasks like factory resets, flashing custom ROMs, or installing system updates.

When you connect an Android device to a computer via USB while it's in bootloader or recovery mode, the Android Bootloader Interface driver ensures that the device and computer can properly communicate. This is necessary for tasks such as flashing firmware, unlocking the bootloader, or performing system recovery operations.