Visual Studio 2015 download getting stuck at applying Microsoft ASP.net
Fixed it...
Easiest way is "threaten" to shut down the computer. Go into Power, restart system. You will be warned that there is a logging program which will not let the system reset. Cancel that program and then do NOT restart.
Installer immediately went on to next part and finished install after having been stuck for 6 hours...
I got it to work, it wasn't perfect, but here is what I did: It was getting stuck at very certain points, most notably ASP.NET. I did a little research and got an idea from something I read (I unfourtunetly can't find the source again). Sometimes windows opens invisible "confirm" type windows or installer windows that get stuck. When the installer got stuck I opened up task manager -> details, than checked On the visual studio process by right clicking then clicking analyzing wait chain. This showed me what process the VS install was waiting for. Then, I'd just kill the process. Messy, I know, but better then nothing. I had to do that 2 or 3 times. Afterward it said it installed correctly with 2 components that had warnings. ASP.NET was included. But everything else worked fine (c#, C++) Later I went back and did a repair. That worked pretty smooth. Finally, I installed the Python Tools successfully. (that part is sort of irrelevant but the point was that everything is now working fine).
edit, found another source: Visual Studio 2015 Community Edition Installation Stuck In Windows 10