You can use Quick Assist in Windows 10 to remotely help someone with a PC problem.
Have you ever had a friend or family member ask you for help setting something up on their PC? Maybe they asked you why it's not running properly, or maybe they were unsure why a program wouldn't install. In any case, if you aren't able to meet them in person, the Windows 10 Quick Assist feature allows you to remotely access their Windows 10 PC. This feature gives you full control, so you can quickly work your magic on their device.
Full story from the WindowsCentral blog...