In this case, you can try to make the factory reset. This factory reset will lead your tablet to its default setting which means the applications that you have installed have already wiped out. These applications are the one responsible for the freezing on logging of the tablet
Here is the step:
> Master you phone power button and volume control
> Set the volume into its maximum level
> Press tightly the power button for about 30-40 seconds
> Wait until the pop-up window comes out
> When it comes, Then release the power button
> Control up the volume power to select factory reset
> Continue until the process is finished.
If this doesn`t succeed, then consult technicians now because your hard drive needs checking up and some repairs as well.