Let's say, for example, I bought a desktop computer which comes together with a preloaded OS. Then after a few months, I plan to buy another desktop but as usual the bundle comes with a preloaded OS. It is possible not to accept that preloaded OS and get a cheaper price for that bundle? Are the retailers/salesman willing to do so? I am aware that those preloaded software are already discounted but I'm just curious is it possible to do that?