3. Open your command prompt by typing cmd in your run. Start ⇒ Run ⇒ type cmd.

c:\<path-to-jdk-dir>\bin\keytool.exe -list -alias androiddebugkey -keystore "C:\users\<user-name>\.android\debug.keystore" -storepass android -keypass android

below is how got my MD5 fingerprint

keytool.exe -list -alias androiddebugkey -keystore "C:\users\ravi\.android\debug.keystore" -storepass android -keypass android