how to change thermal paste cpu hp pro book 6555b



Hello Mahmoud, and welcome back.

Entomber makes a great point, don't.
Here is an image of what you are looking at, from a different angle: http://www.tomsguide.com/us/Laptop-Notebook-Overheating,review-1596-6.html

Unless you are swapping the CPU, don't add more paste, it won't help.

- Harrison Whitmarsh
Lincoln Nebraska USA