It was easier to find than I thought.
Mine is QB 2012 Pro so you type in the find window C:\ProgramData\Intuit\Entitlement Client\v6 and it will open that folder. You might need to have the hidden files shown.
Delete or rename the file to .old
Then just run the repair setup from Control Panel, Programs, QB 2012.
It kind of mash up some files but the Tool Hub repaired them.
QB hates to be cloned!