I think your window is corrupt, so you need to re-install OS in your laptop.
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If not solve your problem then click on <a href="https://acercustomerservice.com/acer-customer-support/"> Acer Customer Support</a> for instant help and better solution.
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If not solve your problem then click on https://acercustomerservice.com/acer-customer-support/ for instant help and better solution.
I think your window is corrupt, so you need to re-install OS in your laptop.
If not solve your problem then click on <a href="https://acercustomerservice.com/acer-customer-support/"> Acer Customer Support</a> for instant help and better solution.