Under Quick Assist, users at both PCs see the desktop of the PC being controlled. In this way, the person controlling the remote PC can diagnose or fix a problem with it - for example, by running an anti-malware program or uninstalling a troublesome hardware driver. A little-known app that comes with Windows 10, Quick Assist is a remote-access tool that connects two PCs over the internet so that a person at one PC can remotely control the other.
