Cannot perform in-place upgrade from WS2012 to WS 2012 R2

Question

Trying to upgrade from
Windows Server 2012 to Windows Server 2012 R2 The following occurs:
Copy install files to install directory on local system
Click Setup.exe.
UAC requires acceptance.
Windows Server 2012 R2 appears.
Click Install Now Button.
Message: "Setup is copying temporary files."
Message: "Setup is starting."
Splash screen reappears.
Cannot get beyond this to the wizard. Tried safe mode, tried from mounted ISO, tried from Install directory with setup files.
No indication of error in any Windows logs.

Answer 1

This issue was solved in another post here is the posted resolution:
RESOLUTION:
Process      monitor (saved the pml file - 144MB) gave me a command line launch      statement:
          C:\$WINDOWS.~BT\Sources\setup.exe /runlocal      /BTFolderPath:C:\$WINDOWS.~BT /OSImagePath:"z:\Sources"      /HideWelcome /uilanguage:en-US /targetlanguage:en-US
          If I run the above command from Start-->Run I get the first      Windows Setup screen "Get important updates for Windows Setup. 
Select No thanks, I'm prompted with the      operating system options, next, license terms, next, upgrade (selected) vs      clean install, next and then Windows Setup fails with message,
          "Windows Setup cannot locate a valid hard drive to store      temporary installation files.
 http://msdn.microsoft.com/en-us/library/aa367988(v=vs.85).aspx
states that      you can specify a      
/tempdrive:{driveletter} command line option
Pointed to USB      drive designated as F and ran command as:
C:\$WINDOWS.~BT\Sources\setup.exe      /runlocal /BTFolderPath:C:\$WINDOWS.~BT      /OSImagePath:"z:\Sources" /HideWelcome /uilanguage:en-US
     /targetlanguage:en-US /tempdrive:f
Failure      message:
"The specified drive [F:] does not meet all      requirements necessary to store temporary installation files
Changed      command to point to internal D:Drive as:
C:\$WINDOWS.~BT\Sources\setup.exe      /runlocal /BTFolderPath:C:\$WINDOWS.~BT      /OSImagePath:"z:\Sources" /HideWelcome /uilanguage:en-US
     /targetlanguage:en-US /tempdrive:d
Upgrades      proceeds to successful conclusion.
Malort