Cant load login and when does and i login it wont load

[Windows 10]

Im unable to load up onto home screen it seems fine to start normal load up goes to lock screen but when trying to go to the bit where you enter your pin nothing usually appears you just see the background image and if it does show the login i enter my pin it loads for a few minutes and loads to the home screen but nothing loads and when attempting to factory reset it says its unavailable im not sure what else to do

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