How do we lock advanture exp in order to get AA exp?Follow

You've heard a little bit incorrectly. Locking combat exp does just that...locks out adventure exp earned from killing mobs. It does /not/ make your combat exp start applying to your AA exp. The benefit is that you level slightly slower. Since all of your exp comes from quest completions and discoveries instead of combat, you can complete more quests before they grey out earning more AA exp at lower levels than you would normally. Basically you are sacrificing leveling speed for AA speed. If you want to do it all you need to do is right-click your adventure exp bar and you should have an option for "Disable Combat Experience".