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A message for that OC system files needed restore with OK button now may appear in some situation.
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Failure to Transfer older files if all old Origins have been uninstalled (ORG-828)
If user has uninstalled all old Origins on his/her PC and then install new Origin and choose Tools: Transfer User Files... menu.
User would fail to choose Specified Folder option and transfer files. The Transfer button is always grayed out.