I was using Windows 7 and I was able to launch more than one Visual Studio and work at the same time. Now I have windows 8.1 OS and whenever I try to launch second Visual Studio it brings me the one currently launched. Is there a solution for that or should I settle to this new thing?
If you have one instance open of Visual Studio, locate it in the taskbar.
Rightclick on the Visual Studio icon and click the line "Visual Studio[version]".
Middle click your Visual Studio icon in the task bar.
Press shift and click the visual studio icon
来源：https://stackoverflow.com/questions/23558152/how-to-open-multiple-visual-studio-windows-on-windows-8-1