Factory reset nextbook - Nextbook Tablets & eReaders

you are having trouble resetting your Nextbook 8P. Here are a few steps you can try to reset your device:

1. Soft Reset: Hold down the Power button until the device turns off, then turn it back on.
2. Factory Reset using the Settings: Go to "Settings," then "Backup & reset," and finally "Factory data reset." Confirm the action and wait for the reset to complete.
3. Factory Reset using Hardware Buttons: If you are unable to access the settings menu, you can try resetting the device using hardware buttons. To do this, you will need to follow these steps:

• Power off the device
• Press and hold the Volume Up button and the Power button
• Release the buttons when the Nextbook logo appears
• Press the Volume Down button to navigate to "wipe data/factory reset" and press the Power button to select it
• Confirm the action by pressing the Volume Down button to select "Yes" and the Power button to confirm.

If none of these steps work, the device may have a hardware issue and it may be necessary to contact the manufacturer or a professional repair service for further assistance.

you have an internal problem before doing a factory reset notify the customer support of you tablet

try this link might help you out.
factory restart nextbook Google Search
or this.
How do you hard reset Nextbook device

Simple video on how to hard reset Nextbook Android Tablet. Power off device, select volume up and then power, hold power for 5-7 seconds and let go without releasing volume up. When u get the android menu scroll down to wipe data navigating with the volume buttons and then to wipe data.20 Aug 2013

Nextbook Android Tablet Hard Reset - YouTube

https://www.youtube.com/watch?v=TM-Ir-stVL8 https://www.google.co.uk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=How+can+I+do+a+factory+reset+on+my+nextbook+7

Try a factory reset

Nextbook Android Tablet Hard Reset

or

Nextbook Factory Reset Reboot

Hold the volume up button and the power button in at the same time. Watch this video to see the choices of simply reooting or resetting to factory defaults.
Nextbook Factory Reset Reboot

You could download a JB rom for your nextbook 8 and flash it using live suit or do a factory reset by turning it off then hold down the vol up button then hold the power at the same time until you get recovery appear then you can do a factory reset.

Charge the battery sooner.

Go to Settings and click On Back up & Reset. Then click Factory Data and Reset. Follow from there on...