Hi,
You can find it from the following link. But please note:
"HP CoolSense Technology is a feature in some HP notebook PCs that combines hardware, software, and mechanical designto dynamically manage the temperature of a notebook, and help keep you comfortable while using it. This feature is available on supported notebooks that are running a supported operating system."
http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?cc=us&lc=en&dlc=en&softwareitem=ob-94127-1
Regards.