Just like my title said, and here are my system specs
 
	 
 
	Product name: Lenovo Z51-70
 
	Bios Version: C2CN19WW (V2.00)
 
	CPU: I5 5200U 
 
	Ram: 4GB
 
	SSD: Kingston SUV400S37480G  480GB or 5000GB
 
	Optical Drive: HL-DT-ST DVDRAM GUCON
 
	 
 
	I bought it used, but I think the ram is the stock  and Kingston SSD is my upgrade on it.
 
	 
 
	Any guide that I can follow? 
 
	 
 
	Please help~~ Thanks in advance~~