Ukjent seems to norwegian for "Unknown", and the OS seems to be set to norwegian.
I checked the HKEY location on my computer, and it has a default value but no unknown value.
Launch regedit and navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run and tell us what it lists.
I got a couple subenteries on mine (Java and blackberry), so it is used for legitimate purposes (if not standard)
It's interesting that it has a date in the command entry. I think that should be pointing to an executable, but it does not.
It could be an application that installed/uninstalled incorrectly, but I'm not sure.