A:AnswerI would imagine so. Mine is currently standing vertical because that is how my desk is configured but I could put it horizontal with monitor on top if I had the desktop room
A:AnswerBecause that's a refurbished system, you'll need to contact whoever you bought it from to see about a replacement. It sounds like either the hard drive has failed or the refurbisher didn't reinstall Windows on it.
A:AnswerYes you can but will probably need to install an upgraded video/graphics card. I had to do this in order to play certain games fortunately it was very simple to do. I got a GIGABYTE NVIDIA card for about $80, installed it and BAM game on!
A:AnswerYes-you'll have no problems doing live streaming with this laptop. The bottleneck is almost always the actual speed of the Internet connection.