Unable to Build Editor From Source in Windows 8.1

Hi I am trying to build the Unreal Editor in Windows 8.1 But when I try to generate the project files it returns the following error:

‘REG.exe query HKLM\Software\Wow6432Node\Microsoft\VisualStudio\12.0 /v “Install
Dir” 2>Nul’ is not recognized as an internal or external command,
GenerateProjectFiles ERROR: We couldn’t find a valid installation of Visual Stud
io. This program requires either Visual Studio 2013 or Visual Studio 2012. Ple
ase check that you have Visual Studio installed, then verify that the HKEY_LOCAL
_MACHINE\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\12.0\InstallDir (or HKEY_LO
CAL_MACHINE\SOFTWARE\Microsoft\VisualStudio\12.0\InstallDir on 32-bit machines)
registry value is set. Visual Studio configures this value when it is installed
, and this program expects it to be set to the '\Common7\IDE' sub-folder under
a valid Visual Studio installation directory.

Please Help
I have Microsoft Visual Studio Express 2013 installed
I checked for the file InstallDir in regedit.exe through run but could not find it there.

Hi pskpsk6,

Sorry for the delay in response. Can you confirm that the VS 2013 version that you have is the “for Windows Desktop” version?

http://www.microsoft.com/en-us/download/details.aspx?id=40787

Thanks

Howdy pskpsk6,

Just wanted to check in with you and see if any progress has been made since when you first reported this issue. If the error is still occurring, please do let us know so that we can further investigate the issue. For the time being I am going to close this post for tracking purposes.

Thanks and have a great day!