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When I use Finder to do this: - right click file - choose "duplicate"

I get asked for my password. Every. Single. Time.

I have tried every trick I could find online, up to and including repairing ACL permissions ( Still no luck.

I use this feature a lot, and would very much like to het rid of the password prompt.

P.S. I have FileVault enabled

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I think this question already discussed in here… Also, take a look in here – user238960 Jul 18 '13 at 10:27
I have tried everything in those posts. Completely baffled. If I copy and paste on the Desktop, the file is duplicated, no problem. If I use Finder, right click, Duplicate, I get the password prompt. I have checked permissions of /private/tmp and all ACL's. The demo user I have on my MacBook does not have this problem. I may just make a new user and be done with it. – dyve Jul 24 '13 at 6:46
up vote 2 down vote accepted

I found the answer here:

Somehow, "Duplicate exactly" has become the default command rather than "Duplicate".

And "Duplicate exactly" seems to require authentication.

Running defaults delete -g from Terminal and killing all Finder instances solved this for me.

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