Acer laptop won't power off

I have an Acer E5 575G running Windows 10. After using the laptop for less than about 3 hours it will shutdown normally (LED turns off).
If I use it for more than about 3 hours when I shutdown Windows the laptop does not power off (LED stays on). To power off I must hold down the power button for about 10 seconds and then it powers off. Has anyone had this problem and found a solution? Also, after about 3 hours use, the restart button does not restart the laptop it shuts it down. Could this be a capacitor problem?

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