I can only second what @ambershark says.
Using a virtual machine is far less pain than what you are trying.

Did you really install VS2015?
Do you have "Microsoft Visual Studio 2015" in Control Panel\All Control Panel Items\Programs and Features?
If so then select it and press "Change" and make sure to install C++.

Hi,

Currently the QtQuickCompiler is a licensed product, you should rather contact the Qt Company for these questions.

You're welcome !

Since you have it working now, please update the thread title prepending [solved] so other forum users may know a solution has been found :)

Also, while browsing the forum, if you come across answer(s) that you find useful, please consider up-voting them. That will make them more visible for other visitors.

@ealione
The good thing is that typically users do not notice. The problem is popping up when trying to compile with older compilers or you remember that such stuff was not possible in the past.
As @mcosta suggests there is probably a recommendation out. On the other compiler versions are changing too rapidly and also the versions of recommendations.