I've got the very same issue on a mid year 2012 laptop MBP. I've tried the single user access and removal of the original setup file; but i think that mu unix knowledge din't find the requested file to be deleted.
Perhaps you can help/
This is something that we can try to look at in-store at any location. An appointment is not needed for service, there may be some available online at https://www.microcenter.com/site/service/service.aspx Otherwise please visit the store with the computer and charger/power cable for assistance, store hours are 10am until 9pm Mon-Sat, 11am-6pm Sun.
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