Well 'factory reset' and 'hard reset' are two different things. The first is usually used when you are trying to keep data that is on the device. Which, if there is a virus, malware, bad app, etc., that was causing the problem in the first place, then a reset that keeps your data is not going to help. You can try a "Hard Reset". However, that will wipe all data on the device and bring it back to its original state.
NOTE: Doing this will clear 'all' the data on your tablet, so it is suggested you not choose this option unless you have to, or aren't worried about losing anything on the device.
Be sure you back up any data you want to keep, to a computer or cloud account, before doing the reset.
To "Hard Reset" the tablet...
1. Make...