Search for "Visual Studio Community 2015 with Update 3." This is the most stable and final build of the 2015 cycle.
It generally requires less RAM and disk space than the more bloated modern iterations. --- Download Microsoft Visual Studio 2015 Community Edition
Do you need to or another version control system? Search for "Visual Studio Community 2015 with Update 3
Microsoft usually hosts older versions on their "Older Downloads" page. You will likely need to sign in with a free Microsoft account. --- Download Microsoft Visual Studio 2015 Community Edition