Shadow users with Quick Assist
Quick Assist is a new tool (simpler than Remote Assistance – it doesn't require any pre-configuration) you can use to give control of your computer to people you trust over the internet. The other great thing about Quick Assist is that it's free to use as part of your Windows 10 license!
Quick Assist is part of your cloud PC and all other physical Windows 10 operating systems. So, you just have to search for it in your Start menu to get started. Pretty simple, right?
Once you've done this, you will have to log in with your Azure AD credentials. If you are the user, you need to enter a 6-digit code. If you are the helpdesk employee or the IT admin, you have to click on Assist another person:
Wait for the session to load.
During the loading process, the helpdesk user will be asked for the type of control they wish to implement: