So I was in the midst of using my Lenovo laptop and it showed that it had some error and that it needed to restart. So it restart on it's own and ever since then it has been stuck on "Reparing disk error. This may take up to an hour" . It has been like this for 3 days I tried restarting my laptop by holding the power button but it still showed the same thing. What am I supposed to do? I have assignments due.