What causes that strange whirring noise inside your Computer?
You may even have a hard drive problem developing. But a dying hard drive is more likely to make a loud clicking noise rather than a whirring one. To play safe make an extra image backup of your hard drive, just in case the hard drive is the culprit.
Once your hard drive is protected, start looking for a problem amongst the fans. You need to figure out which fan is causing the problem and see if it is loose or damaged in some way. How you do this depends on whether you have a laptop or a desktop computer.
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