When clicking a folder, a different will open

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Needhelp - Updated on Jun 19, 2017 at 05:29 PM
Hello,
I am not sure what is wrong with my laptop. When I click a folder, different folder will be opened. I started to use fn+f7, it works.
But then it happen again, but this time fn+f7 not working anymore. Even when playing video, it keeps on forwarding. When I open internet browser, it keeps scrolling down.