Its better to go through the Recommended Microsoft's Way to download Visual Studio 2015 Update 3 ISO (Community Edition).
The instructions below will help you to download any version of Visual Studio or even SQL Server etc provided by Microsoft in an easy to remember way. Though I recommend people using VS 2017 as there are not much big differences between 2015 and 2017.
Please follow the steps as mentioned below.
Visit the standard URL www.visualstudio.com/downloads
Scroll down and click on encircled below as shown in snapshot down
After that join Visual Studio Web Dev essentials for Free as shown below. Try loggin in with your microsoft account and see that if it works otherwise click on Join
Click on Downloads ICON on the encircled as shown below.
- Now Type Visual Studio Community in the Search Box as shown below in the snapshot
. - From the drowdown select the DVD type and start downloading
