Check following software and hardware requirements for installing Visual Studio 2015 and make sure that your system meets these requirements.
Visual Studio 2015 System Requirements[
^]
Visual Studio Professional 2015 with Update 3
Hardware Requirements
1.6 GHz or faster processor
1 GB of RAM (1.5 GB if running on a virtual machine)
10 GB of available hard disk space
5400 RPM hard disk drive
DirectX 9-capable video card (1024 x 768 or higher resolution)
Software Requirements
Windows 10
Windows 8.1
Windows 8
Windows 7 SP 1
Windows Server 2012 R2
Windows Server 2012
Windows Server 2008 R2 SP1
Hope, it helps :)