How to perform factory data reset on your Galaxy tablet?

You can perform a factory data reset on your Samsung Galaxy tablet to restore its default settings or delete all of your personal information. This feature is helpful when you want to start fresh. Factory Resetting a mobile device is not reversible. Your personal information cannot be recovered after using this feature.

From Settings, search for and select Factory data reset. Tap Factory data reset one more time, and then review the information. When you're ready, tap Reset.  Follow the on-screen instruction, and then, if prompted, enter the requested account information. You may be asked to verify your passwords for any account that has been added to the device. Finally, tap Delete all.

It may take a few minutes while your tablet removes your personal data and restores itself to its original state.Once the tablet has been reset, it will bring you back to the initial setup page. In some cases, the tablet may require you to enter account information to verify your identity.