I upgraded my current laptop from 8 to 16 GB to 32 since 2014. I replaced the 750 GB HDD with 1 TB SDD. Then I replaced the DVD with another 1 TB SDD. It was as easy as slide the bottom out, loose a couple of screws and that's it. Ok, I concede that replacing a worn out keyboard was not as easy as on YouTube but I like serviceable hardware.