Windows 10 users please use Internet Explorer by typing "Internet Explorer" in the search box on the taskbar. Alternatively from Microsoft Edge you can click the three dots in the top right and open with Internet Explorer. If you cannot find Internet Explorer you can download it from the Windows Store or from the Internet Explorer 11 download page.
Mac users with OS X Lion (10.7) and above please follow this guide to access the remote system.
iPad users with iOS 8 and above please follow this guide to access the remote system.