I typically use Chrome Desktop to gain access to my computers. When I help out a friend I will use TeamViewer.
With TeamView you send your friend a link to the Instant Customer app at this link. They run the following app from the web page. Or have them to go this link: http://download.teamviewer.com/download/TeamViewerQS_en.exe
For you to connect download the full TeamView app at the same link show above. Then connect to your friend's computer by entering the partner id shown above.