Hi all, just need some confirmation of my suspicions. I bought a 2010 Macbook pro of a friend, he got it as a part ex last december, was £400 so a bargain. Ive just bought a new hard drive to put it, installed it etc. This is where the issues come. I installed the disk he gave me with it goes past the select language page to then it comes up saying something like "Mac osx can not be installed on this machine", give me the option to use a backup. I ejected the discs and they say they are for a 15 inch(mine is 13). I also tried a retail copy and this gives the Kernal error thing. I have tried on both the new and old drive and get the same results for both.. Would I be right to presume that the Macbook disk will not work as its not the specific disk for the machine and the retail wont as its too old?