One time I tried to watch a downloaded movie then after I clicked it, my laptop suddenly turns off even if its not lowbatt yet. So I tried to charge it in 2-3 mins then I unplugged it.I open the movie again then it turns off again.I already tried to open the settings-power & sleep settings-change when the computer sleeps. But nothing has changed. I also try to create a power plan but it remains the same. I try to watch the movie while charger plugs in then it works. Doesn’t turn off again. But when I unplugged it again, after 2-3 mins it turns off again. PS: My pc have many cracks does it affect?? What can I do to fix it?