I am considering to buy a Windows 10 OS once I purchased a New PC but for now I will stick with my Windows 7. I will not upgrade the OS my current PC even though I will get to have Windows 10 on my future soon to be new PC. I need to have 3 PC's because I have multiple online jobs while I want the other one for streaming games. I want to use my PC's for just 5 hours so they won't overheat. Having extra PC's will be a life saver for me.