ADB is simply a short form of Android Debugging Bridge. It is to debug android's firmware by making a connection between android and PC this is called as Bridge. We can access internal firmware without rooting our smartphone with the help of ADB. We need a proper ADB driver installed on the PC to do that.

Steps to install ADB Drivers :

• 1. First of all download this : ( ADB 15sec setup )
• 2. Double click on "ADB 15sec Setup.exe" file.

• 3. After that you will get this screen. 

• 4. Type "Y" and Enter.. ( x3 times). Then you get to see this screen.

• 5. After the installation head towards to "C:\" you will see adb folder. That means the adb installation was successful.