Grant access to LocalDb after users have changed Windows domain

When user accounts are changed, i.e. when assigned to a new Windows domain, previous login to LocalDB do not work any more. The new domain makes all old Windows login invalid and previous login to LocalDb unusable. 

Follow instructions in the linked article to remove old files, with access to old accounts preventing access for a new login. 

https://stackoverflow.com/questions/40851930/is-it-possible-to-change-the-user-account-of-the-localdb-instance-in-sql-server

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