: Up to 40 GB of available space depending on the features selected during installation.
You do not actually need the full VS 2015 IDE. Microsoft allows you to install legacy "Toolsets" in modern VS. --- Download Microsoft Visual Studio 2015 Community Edition
(ISO) instead of "EXE" from the drop-down menu. The web installer often fails because the SHA-1 signed content it relies on has been retired. . The file size is approximately Stack Overflow Step 3: Installation Process : Up to 40 GB of available space
: Click the download button to save the ISO file to your computer. Installation Process --- Download Microsoft Visual Studio 2015 Community Edition
A complete, large file containing all components. Ideal for installing on multiple machines or offline environments. Step 4: Download Update 3