Hello and thanks for your question. I look forward to assisting you today with the best answer possible.Most users are facing huge issues with windows 10 on Toshiba Encore tablet.
Do you have the recovery media in a USB drive?
We will have to perform system recovery.
You have to purchase the recovery media from Toshiba for your unit.
Then you have to connect the USB-OTG cable to your Toshiba Encore and plug in the recovery media USB flash drive to recover.
No need to go for remote assistance because in this issue Remote assistance won't be helpful.
I am sorry I didn't meet your expectation but give me last chance to prove it.
In your case we need to perform system recovery.
Do you have any recovery media which you might have got along with this unit?
Else we will have to purchase it from Toshiba.
Please let me know.
I am sorry to say you have no other option.In the meantime I will give you a manual which will help you step by step in performing the recovery.
Please click this link to access the manual: http://aps2.toshiba-tro.de/kb0/HTD4103K90000R01.htm
Once received the recovery media from Toshiba, just follow the manual to perform recovery operation to get your unit back to fully operational condition.
I understand how you might be feeling at this moment but some issues take time to resolve for the first time.
Once you have the recovery media with you and you face this kind of problem again, you can easily fix it at once.
Is there anything else I can help you with?
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If it's under warranty then take it to Toshiba to repair it free of cost.
I'll request a refund for you.