So my girlfriend wants to get a gaming computer but right now she is a bit tight on money, all she wants one for mainly is to play sims 4. I told her to that should could get it and play it on my pc but then she asked well what will happen when she gets her own pc eventually. I thought that was a good question and decided to come here. Wondering if I buy her a hdd put that in my pc and install windows onto it, install the game, and have her boot off of it every time to play can that hdd be taken out and be placed into a pc that she will eventually have? I just dont want to have her buy the game and download it on there then when the day comes that I try to pop it in on her computer it dosent work and she wasted the $40-$60 on the game and her time spent on it.