Hi my name is ***** ***** I will be the expert working with you today to help and resolve the problem you have posted.
I am sorry to know that you are facing problem with your computer. Grinding noise from hard drive means it can crash anytime. This happens normally with new computers when the computer is not handled carefully in transit. Backup your data if you have anything important in an external usb drive.
As your computer is under warranty you can get it changed by calling Dell support.
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