HP ProBook 4540s 15.6" Notebook PC - D8E64UT

okay this is Michael I'm gonna do a quick information how to add extra memory to this public we buy the original memories they come in this little plastic package take them out and do touch something with metals so you're not have a static electricity here it is so look like and now we're gonna do show you - you have to like so and then it's that one the battery comes off and when the battery comes off you press it again a little bit harder the memory slot harddrive and wireless network so and it already comes with a four gig take this here's the pin I have to wheel it push it down see that fits see that these things take hold sit down and that's it wait don't push it up see these touch and then put the battery down like that now it's done