My Acer laptop is giving some noise while I am switching on after charing,can you tell me the reason behind?....

Jan 30, 2019
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This is my brand new laptop I had charged my lap for 7 hours from night till morning when I switch on the laptop morning it is giving some hzzzzzzz..... noise ,it is not at all turning on ,what shall I do for this ?.. Can you suggest me an idea?..