Changing your fan speed in Windows 11 is easy once you know where to look. In just a few quick steps, you can adjust your computer’s fan settings to suit your needs, whether you want to cool down your system or reduce noise. Learn how to adjust your laptop's fan speed on Windows 11 with our easy, step-by-step guide to optimize performance and reduce noise. Learn how to adjust the speed of your CPU fans on Windows 11/10 using the Control Panel, BIOS/UEFI, or SpeedFan. Find out why your fan speed may increase or decrease and how to fix fan errors or problems.