ZTE Computers & Internet - Page 3 - Recent Questions, Troubleshooting & Support

did u uninstal drivers first? might need to run as administrator. let drivers search internet so it goes straight to windows. try windows update

With the device turned off, press and hold the Volume Up and Power buttons until the ZTE logo screen appears, then release. Press the Volume down button to highlight wipe data/factory reset. Press the Volume down button repeatedly until Yes -- delete all user data is highlighted Press the Power button to select Wait Once it is back up, you can put it on your WiFi network/etc. Now you can take it to a cellular carrier to purchase phone service and get the phone programmed for that service.

Check at XDA website, they have some good guides there.

I would check ZTE's website to be sure, but if there is an empty memory socket inside the tablet for expanding memory, then it's possible. Adding memory to the SD card slot on the side of the tablet does not increase tablet memory to run programs, only for making more room to store pictures from the camera.