Windows 10: Randomly occuring black dots/bars in screen - Lenovo laptop

Dear Tenforums users,

I have recently encountered problems or rather peculiarities with my relatively new Lenovo laptop;
whenever I'm working on it and switch to another tab, there is a chance of random black stripes and dots occuring in the screen. Not (yet) to the extend that I cannot work on it and when I switch tabs again they are gone from the previous tab.

Screenshots of the problem:









I am just wondering what might be the cause and if I should be worrying myself about future defects. (especially since my warranty is till february 2017)

Thank you all for your time!

Yours,



:)

 

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Bump. Do I need to provide more information/data?

I am really anxious about this occurence... I really hope that somebody knows more about this kind of things and can help me in this matter.