@adamf, really important: the reference to ProgramData in the quote from Seven Forums only applies to Windows Seven (and Vista if you still got one ).
Do not relocate the ProgramData folder in Windows 8 or later operating systems! This will cause Moderns apps, Windows Store, Windows Search and PC Settings malfunction.
It is extremely important to remember this: Windows 8 and later will work even when the ProgramData has been relocated but no modern / immersive app will work! This in its turn causes Windows Update issues.