Quick Assist is a Windows 10 app that lets someone you trust take over your computer to help you solve a problem. To get started, your helper needs to launch the Quick Assist app, get a 6-digit code and share that with you.
To give assistance, select Start > Windows Accessories > Quick Assist > Give Assistance. Send the 6-digit code to the person you're helping, and follow the instructions.
To get assistance, select Start > Windows Accessories > Quick Assist > Get Assistance. Enter the 6-digit code from your helper, and follow the instructions. If User Account Control appears, select Yes to continue.