Sorry, but I do not fully understand: you cannot right click the Windows Repair.exe file or the shortcut to it and "Run as administrator" ? Strange ! Are you the only user of the PC ?
Otherwise, I also think you need to go for the cmd line route now.
But I am wondering if this is solely an issue with the "ProgramData" folder; so I'd suggest to also run (
besides or instead the command proposed by Xpoit Machine) the
DISM /Online /Cleanup-Image /RestoreHealth command (
explained as the3rd option in the link) or the tool I proposed alternatively in my first post (which does the same).
If everything else fails, you still could launch the (Super-)Administrator account, inbuild into Windows and try from there. But you again need the cmd line tool (
rightclick and run as administrator) and type at the cmd prompt: "
net user administrator /active:yes" (
without quotation marks, but with the spaces (and no typo 
)). Please also pay attention to the word "administrator", it is language sensitive, in my case (French) I need to tape "administrat
eur". I suppose in Scandinavian languages it may be regionalised too, or it could be in English. Then
log off (
no shutdown or restart needed) and you will see two accounts to
log in; choose the one newly created and
log on. It will take some time to create the account. Then try again from this account.
Please don't forget, when you are back to your normal user account (log off and log on to it), to type "net user administrator /active:
no", because having the inbuild administrator account always open presents a security risk.