Aspire F5-573G Reboot problem
Hello guys! I am facing a serious issue on my Aspire F5-573G. After usage, i turned off my laptop before sleeping on night. On the next morning when i tried to turn on my laptop, it restarted several time, sometime i saw the acer logo and sometime just black screen. So i just turned down the lid and waited for sometime, but after several hours, when i tried to open my laptop, the same problem occurred again. i tried to press and hold the power button for several seconds to check, but the problem occurred every time. After a while, it didn't start at all. no restart, nothing. i tried connecting the charging cable. But nothing happened. About a week when i tried to boot my laptop, again it didn't start at all. So i kept it as it was. After nearly a month, today it finally turned on and some windows update happened. So i restarted it. And it turned off after showing the windows update percentage instead of restarting. I tried to turn it on again, and again it didn't start. After some hours, when i tried again then it started normally.
So What could be the problem here. I am worried as hell. Some help would be much appreciated. Thanks in advance and i beg your pardon for making this so long.