.NET Framework 4.5 is enabled by default in Windows 8
@Erel. My actual version is 4.5.1 (sorry not 4.5.2 as previously stated, that was a typo).
Using
dir /b /ad /o-n %systemroot%\Microsoft.NET\Framework\v?.*
Returns
v4.0.30319
v3.5
v3.0
v2.0.50727
v1.1.4322
v1.0.3705
Going through the registry keys HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP obviously shows up to 4.0 matching the above list. But Windows 8.x has 4.5 by default, VS2013 also has 4.5.1. when creating projects
Anyway I have selected 4 from the above list.