What a factory reset does and when you need one

A factory reset erases everything on your Android tablet — all apps you installed, photos, documents, messages, and settings — and returns it to the state it was in when it left the factory. The operating system stays the same, but your personal data is gone. You should do this if you're selling or giving away the tablet, if it's running so slowly that nothing else has helped, or if you've forgotten your lock screen password and can't get in any other way.

Before you start, understand that this cannot be undone. If there's anything on the tablet you want to keep — photos, documents, contacts — back it up to Google Drive, a computer, or cloud storage first. Once you reset, those files are not coming back.

Key Takeaways

  • A factory reset deletes all your personal data and apps but keeps the Android operating system, and it cannot be reversed.
  • Back up any photos, documents, or files you want to keep before you start, because they will be permanently erased.
  • You can reset from Settings if you remember your lock screen password, or from the boot menu if you don't.
  • The reset takes 5 to 15 minutes, and your tablet will restart several times during the process.
  • After the reset completes, you'll see the initial setup screen as if the tablet is brand new.

Reset from Settings if you can unlock the tablet

If you remember your password, PIN, or pattern and can get to the home screen, this is the fastest way. Open the Settings app — it's usually a gear icon — and scroll down to find System or About tablet. The exact name depends on your tablet's brand and Android version, but look for anything that says "System", "Device", or "About".

Tap into that section and look for Reset options or Reset. You'll see choices like "Reset Wi-Fi", "Reset Bluetooth", and Erase all data or Factory reset. Tap the one that says "Erase all data" or "Factory reset". The tablet will ask you to confirm — it will warn you that everything will be deleted. Confirm, and the reset begins. Your tablet will restart and show a progress bar. This takes 5 to 15 minutes depending on how much data is on it.

Reset from the boot menu if you're locked out

If you can't unlock the tablet because you've forgotten the password, you can still reset it using the boot menu. This works on almost all Android tablets. First, power off the tablet completely — hold the power button until you see "Power off" on the screen, then tap it.

Once it's off, hold down the power button and the volume-down button at the same time. Keep holding both for about 10 seconds. You'll see a menu appear with white text on a black background — this is the boot menu. Use the volume buttons to move up and down in the menu, and use the power button to select. Look for an option that says Recovery mode or Reboot to recovery, and select it.

The tablet will restart and show another menu with options like "Reboot system now", "Wipe data/factory reset", and others. Use the volume buttons to highlight Wipe data/factory reset and press the power button to select it. The tablet will ask you to confirm — look for "Yes" in the menu and select it. The reset will begin, and you'll see a progress bar. When it finishes, select "Reboot system now" to restart the tablet.

What happens after the reset is complete

When your tablet restarts after the reset, it will show the initial setup screen — the same screen you saw the first time you turned it on. You'll be asked to choose a language, connect to Wi-Fi, and sign in with a Google account. If you want to use the tablet again, you'll need to sign in with a Google account (the same one you used before, or a new one). This is normal and required by Android.

After you sign in, the tablet will read and reinstall any apps that were originally on it from the Google Play Store. Apps you installed yourself will not come back — you'll need to reinstall them if you want them. Your photos, messages, and documents are gone unless you backed them up before the reset.

Backing up before you reset

If you still have access to the tablet and want to save your photos and documents, do this before you reset. Open the Settings app and look for Google or Accounts. Tap your Google account and look for Google Drive or Backup. You can also open Google Drive directly from the app drawer and upload files manually.

For photos, open the Google Photos app (or read it from the Play Store if you don't have it). Tap your profile picture in the top right, go to Photos settings, and turn on Backup and sync. This will upload all your photos to Google Photos. They'll still be there after the reset as long as you sign in with the same Google account.

Troubleshooting a reset that won't start or complete

If you're stuck on the boot menu and can't find "Recovery mode", try holding the power button and volume-up button instead of volume-down. Different tablet brands use different button combinations. Samsung tablets often use power + volume-up, while others use power + volume-down. If neither works, search online for "[your tablet brand and model] factory reset" to find the exact button combination.

If the reset starts but gets stuck on a progress bar for more than 20 minutes, the tablet may have a problem. Let the battery drain completely (don't interrupt it), then plug it in and try again. If it still won't complete, you may need to contact the tablet's manufacturer or take it to a repair shop.

Frequently Asked Questions

Will a factory reset remove the lock screen password if I forgot it?

Yes. If you can't unlock the tablet, a factory reset from the boot menu will erase the password and return the tablet to its initial setup screen. You won't need the old password to use the tablet again.

Can I stop a factory reset once it starts?

No. Once the reset begins, you should not interrupt it by turning off the tablet or removing the battery. Let it finish, even if it takes 15 or 20 minutes. Interrupting it can damage the tablet's file system.

Will my apps come back after the reset?

Apps that came with the tablet will reinstall automatically when you sign in with your Google account. Apps you downloaded yourself will not come back — you'll need to read them again from the Play Store if you want them.

Do I need a Google account to use the tablet after a reset?

Yes. Android requires you to sign in with a Google account during the initial setup after a factory reset. You can use the same account you had before, or create a new one.

What if I reset the tablet but still can't turn it on?

If the tablet won't power on after a reset, plug it in and let it charge for at least 30 minutes — the battery may be completely empty. If it still won't turn on, the reset may have encountered a hardware problem, and you should contact the manufacturer or a repair shop.