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Question: can't open downloaded app due "unknown publisher"

I can't open a downloaded app because of an "unknow publisher"

MacBook, OS X Mavericks (10.9)

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Question marked as Solved


Go to System Preferences / Security & Privacy pane

and change settings for "Allow apps downloaded from:"

to one of the last two settings.



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Oct 26, 2013 8:28 AM in response to msnijder30 In response to msnijder30

msnijder30 wrote:

I can't open a downloaded app because of an "unknow publisher"

This is Apple's "Gatekeeper" which blocks programs from being installed on your computer that isn't part of AppStore enviroment or their registered developers.

The way it just blocks things kind of makes new computer users beleive only App Store is a source of software.

The way it's implemened is wrong, it should warn you that the app is from a unverified publisher and then have a button to allow it to be installed regardless, like it is on Windows.

Except Apple did things this way and now people have tons of questions and want to turn it off.

If a user needs more controls on outside software, then that should be a option in preferences, not blocking all apps by default.

So it's a blocker, not a fair warning of the higher risks with unverified developers software.

It's very uproductive for developers to spread malware, most are in it for profit or good hearted reasons and the bad ones are few and discovered in short time anyway.

Oct 26, 2013 8:28 AM

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Dec 18, 2013 3:09 PM in response to Denico In response to Denico

I have the same problem except when I go to change the settings to Allow donwloads from anywhere, when i click on anywhere it keeps going back to Mac Store and Identified devleopers.

This never happend till I upgraded to Maverick.

Of course I unlocked the settings, but I still won't let me click and save anywhere.

I login in as the administrator so this should work.

Lots of quirks ever since I put Maverick on my iMac. Functions throught different apps like "export" don't work.

iMac really slow even though I put another 4 gig (now 8 gig total).

I have iMac from 2007.

Dec 18, 2013 3:09 PM

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Question: can't open downloaded app due "unknown publisher"