My display broke on my old dell laptop, I can use it via an external monitor, but I consider buying the same laptop used from someone and just switch my old hdd into the new one. Will there be problems with windows (the graphic cards are only different, everything else is same, since same dell model)? I consider this solution since I quickly need to finish my thesis, without installing (and procure) all the programs anew and do all the adjustments on new (used) laptop anew.