I'm not a perfect wizard behind my curtain. But I believe one shouldn't take drivers for devices one doesn't have. And I do know not all Dell computers of the same name are equipped with the same devices. So, I've found this...
http://www.mysoft.hu/docs/Dell/Dell_Inspiron_3847.pdf
Dell Inspiron 3847 Specs
...but I still don't know what's in your machine. Your purchase is recent enough to contact Dell, actually, for advice on whether to update drivers & how to determine which devices you've got. I did that early on & was cautioned against 1704 & nVidia. But I believe you may also just look in Device Manager to see what is already there. R-Clk START, & select Device Manager...
Double click it for Properties, to see its version at the Driver tab...
I don't want Dell Update in here again, because none of my drivers were Win 10 versions except 2 that Windows Update did. Dell Update was a pretense, for me. If you discover in Device Manager that all your drivers actually do match what you see at the Dell site - then disregard my complaint. Regarding Dell Foundation Services, I'm just not sure what it means to do. Further research is warranted.
But the glitches I reported were all minor. Every update I took from Dell's Drivers & Downloads site installed very well with just one click after the download. They do a version check. One of them uninstalled its predecessor before installing itself. I'm pleased. But you may decide not to do it, especially if you've got no problem to fix.
It did fix a problem I had, I think. At boot, my touchpad would work, but - after a while - its gestures would no longer work. (This was true in Win 8.1 too.) Also, its pointer became erratic. At the time, I already had a driver for the touchpad greater than the one at the Dell site - Windows Update supplied it. After updating the other 12 drivers - that touchpad problem disappeared. I guess one of the 12 was interfering with the touchpad. (Subsequently, the site had even a later touchpad driver which I've also taken. The problem still is gone.)