How do I reset the iPad to factory default Settings
In Settings, click General on the left menu. To avoid losing any important data, you need to make sure you back up your device to iCloud before resetting.
Scroll to the end of General Settings and click Reset.
Tap “Reset All Content and Settings” to erase your iPad.
You need to confirm your selection twice. Since this option sets your iPad back to factory defaults, Apple wants to check your selection carefully. If you have a password lock on your iPad, you must also enter a password to continue.
Your iPad will erase and reboot, ready for someone else to reset it.
How do I erase everything on my iPad
Clearing all Settings and data from the iPad keeps your personal information safe. It is also a troubleshooting tool that can resolve problems by removing problematic applications or Settings. Before wiping the iPad completely, try clearing the Settings and resetting the network Settings. You can perform both of these procedures on the same screen that you used to reset the iPad.
The reset process should include turning off the Find My iPad feature.
Other ways to reset the iPad
If you don’t want to clear the iPad completely, the Reset menu contains multiple options.
If you want to hand the iPad over to a family member who will use the same Apple ID, you can select the first option: Reset all Settings. This option preserves data (music, movies, contacts, etc.) on the tablet, but resets the preferences. You can also try this if you are having problems with the iPad and are not ready to wipe it completely.
If you are resetting your device because you cannot connect to Wi-Fi or have other problems with your Internet connection, try resetting your network Settings first. This option will clean up all the data stored on your particular network and help resolve the problem without a full restore.
Choosing to clear all content and Settings is usually the best choice in most cases. This ensures that all data, including your iTunes account information, is deleted. If you’re selling iPads on Craigslist, eBay, or a friend or family member who will use a different iTunes account, clear all content and Settings.