I have no understanding of the guide on step 3 and after.. could I get some more explanation please?
open cmd (command prompt) and type
cd C:\android-sdk-windows\tools (assuming this is the folder with adb and the folder you extracted the zip file to, if not it may be C:\android-sdk-windows\platform-tools )
should now read out as C:\android-sdk-windows\tools
(or C:\android-sdk-windows\platform-tools )
it is from here where you type adb shell and so on (remember 1 line at a time -copy/paste with NO extra spaces)
for Android SDK
Android SDK | Android Developers (top package- the zip file) -extract to C:\
open SDK MANAGER.EXE (in the folder you just extracted- may take a min to open)
you will see a list of stuff the program wants you to install, reject everything except Android SDK Platform 3.0, revision 1 -*this is one of the top choices it gives you*
-this should include adb which is required-