Iball i701 w10 tablet

[Subrata Jana]

Since i was facing problem, i was decided to reset it. After that it automatically started installation and after 20 minutes it complicated 47% and after that 12hours already passed still showing 47% and thereafter because of battery gone down it gets shutting down. After that when i opened it after charging is showing me a message" installation process can't be completed. To continue click ok for restart reinstallation". I did and restart then showing the same message. Plz help.