From this guy: http://www.bleepingtech.com/windows-8-fix-this-app-cant-open-for-built-in-administrator-account/

You might have encountered with this strange and annoying error.  This app can’t open for Built-in Administrator account please sign in with a different account and try again. or  while User Account Control is turned off. You need to turn on UAC . There is an easy solution for the error.

Solution for Windows 8 App Error:
•Hold the  Windows key + R  and in run dialog box type: secpol.msc
•Go to Local Policies –> Security Options –> Scroll down and find “User Access Control: Admin Approval Mode For built in…..”
•Double click on it and select enabled and the press ok
•Again press windows key and R and type  regedit
•Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\UIPI
•On the right hand side double click on default and change the value to 0x00000001(1) and click ok
•Restart your computer and all the apps should work.