I am currently installing the Visual Studio 2015 Preview on the machine where I have the Windows 10 Preview installed, and since it’s an old machine with just 1GB RAM, Windows started hanging at times. The screenshot below shows what the installer looked like while it was hanging:
See that tiny box towards the top of the screenshot? I guess that’s what windows actually look like before the clunky window style we’re familiar with gets rendered over it.
It’s nothing new – I’ve written before about legacy window styles appearing in Windows XP and this seems to continue that trend. The window style above has a very Windows 2000 feel to it, and I personally prefer it over what we have today in Windows 8+.