A:AnswerYes it is a touch screen. When you use the keyboard you need to disable the touch pad on the keyboard or the cursor will jump to the middle of a sentence you are writing. It's a royal pain in the butt because you have to turn it back on if you don't have a mouse and want to move the cursor.
A:AnswerUnfortunately, you can't upgrade the RAM, you can only add additional storage via the microSD card. The only thing I would recommend is make sure you are not running too many apps.
A:AnswerThis should be an Android tablet, if I haven't accidentially selected the Windows version, so the device should be compatible with Chromecast. A Chromecast is basically Google's TV streaming device. You can use it to mirror many Android apps (But sadly, not the home screen or all apps) to your TV using nothing but your wi-fi network. (I do know Chromebooks can be entirely mirrored, though) I have it for my smartphone and it allows me to push videos from Youtube and Netflix, etc. to my TV wirelessly. I can even watch Netflix and other streaming entirely hands-free with my voice by using my Google Home Mini. (Google's version of the Amazon Echo) Anyway, Chromecast will allow you to mirror SOME apps (A complete list is available on Google Store) to your TV using wi-fi.
A:AnswerMy screen cracked. The 2 year warranty covered accidents. The tablet when I purchased was on sale for $75; at the time of replacement the price was $150 which I got a new replacement I only had to pay for the 2 year warranty.