A:AnswerYes works with win10. I'm running it in an old server that I converted to a home pc/server. Ran win8.1 for a while and worked great then upgraded to win10 and still works well. Very convenient that it's a half length card so it fits in a lot of older systems and still offers a substantial upgrade to video performance.
A:AnswerThis is a desktop card. Most laptops don't have upgradable video cards. If you need a more powerful chipset in your laptop you will probably have to buy a new laptop.
A:AnswerThis model does not support 4K resolution. You need the GDDR5 version of the GT 730 which supports 4K. Note that it will only run at 30Hz refresh rate. For a full 60Hz, you'll need a GTX 950 at least.