Solution 34193: Restoring Default Settings on the TI-Nspire™ Family Handhelds.
How do I restore the default settings on the TI-Nspire family handheld?To restore the default settings for documents on the TI-Nspire, please follow the steps below.
• Press [home] which is the button with the picture of the house.
• Press 5: Settings.
• Press 2: Document Settings.
• Scroll or tab to Restore and press [enter].
• Press [enter] again to save.
Please see the TI-Nspire family products guidebooks for additional information.