Acer E11 random shut down low memory wont play embedded videos

laptop is giving low memory warning and wont play movies or long videos, it reloads then the laptop shuts down I haven't downloaded any new programs I have malwarebytes widows defender and Microsoft security essentials
I reran farbar its attached below.
 

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Laptop is clean, there is no infection. This is pretty old machine and it just doesn't stand a chance against modern apps and modern operating system.