Laptop losing focus?

in Off-Topic
for a few months now I've had a problem with my compaq windows 8 laptop losing focus on whatever screen I have up. For example I will be typing on word and it will lose focus on the screen for around 5 seconds, this will happen every 5ish minutes... just can't find the cause.
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chronos42 Member Posts: 91 ■■□□□□□□□□
Does it do this no matter what other programs you have open? Sounds like something else is taking focus, but not showing up.
Next time this happens, hit Alt-Tab to see what has the focus.