In CRM 2013 you see Navigation Tour popup everytime you log on to CRM unless you select “Don’t show me this again”
The only problem is this popup still appears if you access CRM on any other machine or in InPrivate browsing the popup appears again.
Navigation Tour can be disabled at System level by performing steps below –
1. Go to Settings -> Administration -> System Settings
2. Scroll to the bottom of General tab
3. Change the value of “Set whether users see navigation tour” to NO