Ok, I can't quite understand this situation. I will try to be as brief as possible. So, my aunt has 2 laptops. I've seen one of them, it's pretty old. The other one remains a mystery to me. I remember the one I do have seen having it's HardDrive partitioned in 4 or something like that (can't tell exactly for obvious reasons) My aunt told me today that, she wanted to "put together" the memory of her older lap. So, she gave it to my cousin who's apparently an software engineer (last time I saw him was when I was 5 years old or so... now I'm 25... I just don't care) Then, according to my aunt's words... what he did to her laptops was this: "He took the memory of my old laptop, and put it in the other one. Now I can't browse Spotify or Netflix because I don't have an Antivirus, and now my laptop is slow" Like... she's saying that my cousin took the Hard Drive of the old laptop, and put "parts of its memory" to the other one. I just told her that that was impossible. What he must've done is partitioned the memory of her laptop and he just said to her that he "passed" the memory from one to another. Now, the next week she'll bring her two laptops to see if I can fix them. She says that, her oldest laptop has Windows 7 and the one with the added chunk of memory runs Windows XP. Now I'm asking you guys, if this situation is possible... I really doubt it... but hey, anything can happen, I hadn't seen my cousin in 20+ years and he's a software engineer While I... I'm just a poor boy and nobody loves me I'm just a poor boy from a poor family Spare me my life from this monstrosity Ok, so... what's the most probable situation here?