Yes, you can uninstall them. You will not get any updates after uninstall but if Windows 10 gets a major update you may have them back again.
In the past I have used the instructions on that page to remove the junk I don't want. I found it when I wanted to get the darn things off my start menu. There was no way to delete them from start menu. I found several references to go to All Users/Start Menu and delete from there. Unfortunately, they were not in that folder even when I chose to show hidden folders.
Then I found the How To Geek page.
I followed the instructions individually for a couple of them. Because I wanted to get rid of many more I took the time to copy then paste each command in Notepad.
After all of them had been put in Notepad, I copied it all, pasted it in Power Shell and bingo, it worked. All gone in one fell swoop. My start menu was no longer cluttered with useless things I would never use.
There have been no adverse affects to my computer by following that method to get rid of them.
edit to add: I don't know if they truly are uninstalled. What do know is that if you create a new user account after you "uninstall" those things will be on the Start menu of the new user. I do NOT know if they will be "uninstalled" on another already existing user account or if you have to do it separately for each one.
Edited by Queen-Evie, 26 August 2016 - 02:08 PM.