The hard drive in my Hp Laptop (product #: C2M42UA#ABA) started failing, so I purchased a better drive to replace it. The new drive is a Western Digital Black, 500gb (same as old) 7200 rpm. I have tried many things to put windows onto this new drive so that I can use my laptop again. Simply, I would like for someone to walk me through, step by step, how to actually replace my old failing drive with this blank WD drive so that my laptop functions normally again. I have the new drive, as well as a USB to Sata III cable. I also have made recovery discs from the laptop itself, not that they helped. The farthest I have gotten is by making a system backup with AOMEI and recovering the system to the new drive. However, this ends me up with a blue screen telling me that I need to repair my laptop (error code: 0xc0000225) by inserting Installation Media. Problem is, my Windows 8 laptop did not come with Installation Media or even a sticker on the thing with the Windows key on it. This is driving me to far up the walls than it should. Any help that works is greatly appreciated, especially if I don't have to spend anymore money on this problem. Thank you.