How can I install the Android ADB drivers on a Windows 8.x PC/Laptop?
I followed tutorials on the internet but nothing worked for me.
PS: The adb driver should be compatible with any Android smartphone.
There are many tutorials on the internet, and I will explain the best method here in my answer.
Download this program: http://www.mediafire.com/download/gy3g3gdc1vzcv6a/adb-setup-1.4.2.exe
Open the program.
Yon every option.
More information can be found here.
I've personally found the Nexus Root Toolkit's process and walkthrough always makes this exceptionally simple. Just install, run, let it do its updates, and then click the Full Driver Installation Guide - Automatic + Manual to have it guide you through. The process can often be trickier than merely installing drivers, and this will help you know what you need to remove first, and what odd manual steps may be necessary.