chscag, sorry about the mis-post. Thank you for helping me out. You have also helped me out in the past when I upgraded my HDD on my Macbook. I really appreciate it. For my dad, I don't think the problem will really be with the actual swap, but rather in migrating the files from his old HDD to the new one. I'm sure there is a technical website somewhere that would give detailed instructions on how to do it. I think he is going to get one of those kits that come with the new HDD and an enclosure. If there was a way for him to clone his existing HDD to the new HDD by using the enclosure, then he could just swap them out after cloning it. IDK, when it comes to PCs my knowledge is pretty limited. What do you guys think?