Maybe you have something running in the background you forgot about, or you could be infected with malware that is using your PC's resources without your knowledge. If your computer is sitting idle and your CPU is busting out 100% of its power, look through that list to see what program is eating up those cycles. If you aren't doing anything intensive at the moment, your CPU usage should be low-less than 20% or so. If you're on a Mac, press Ctrl + Space and search for Activity Monitor. On a Windows machine, press Ctrl + Shift + Esc to bring up the Task Manager and click the More Details button.

We recommend using Core Temp (Opens in a new window) for Windows and Fanny (Opens in a new window) for Mac. It may help to download a program that can monitor your CPU temperature. How to Set Up Two-Factor Authenticationīefore you rush to grab your screwdriver, look into what software is currently running, the resources it's using, and whether that fan noise is warranted.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files.How to Save Money on Your Cell Phone Bill.How to Free Up Space on Your iPhone or iPad.How to Block Robotexts and Spam Messages.

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