How to Exchange Cooling FAN, Dust clean from HP Probook 450 G5

After watching this Video you will learn how to assemble and disassemble Laptop, How to dust clean, Exchange cooling fan, BIOS reset.
You're Needed instrument:
1. Star Screwdriver.
2. T8 Screwdriver
3. Plastic Opener.
4. Tweezers
Please comment If you need any Question.
Thank You for watching.