Acer tablet stuck on loop on 64% Downloading windows

Elle92
Elle92 Member Posts: 1 New User
Hi everyone, i hope someone can help me cuz i don’t know what to do next. So i got this tablet from Ebay and i turned it on, it said low battery so i plugged the charger in. In that moment it started to download and install windows, so you guess the charger wasn’t working properly so it went of on low battery it was at 11% download as it turned off. I charged the tablet for about 2 hours and when i got it back on it said 64% download for 3 seconds and then restarted, it’s been on loop for 3 days now. So i tried a bunch of advices i saw on internet but none works , when i try to troubleshoot or to erase everything it appears,- you need to log in as administrator to continue, bit there is no admin in this tablet. And if i have to log in how can i do this if it wont turn on? I cant even acces command prompt, it requires me to lo in as administrator first. Pleaaaase help . 

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