Hi Bill or Juliet

If you’re sure it’s an Application that is safe, you can right click on the 
Application (or Control click on it) to bring up the contextual menu, then 
choose “Open”. 
This will then ask if you want to open it with a “warning”. You can then choose 
“Open” and it will allow you to install/run the software.
As mentioned, as long as it’s one you’re fine running, then that should get it 
working.

Kind regards
Daniel

Sent from my iPhone 7

---
Daniel Kerr
MacWizardry

Phone: 0414 795 960
Email: <daniel AT macwizardry.com.au>
Web:   <http://www.macwizardry.com.au>


**For everything Apple**

NOTE: Any information provided in this email may be my personal opinion and as 
such should be taken accordingly, and may not be the views of MacWizardry. Any 
information provided does not offer or warrant any form of warranty or accept 
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requested. 

> On 19 May 2017, at 11:10 am, Juliet Kitson <billand...@gmail.com> wrote:
> 
> Thanks Ronni
> I am using Sierra the software is from a site I used quite a while ago it is 
> a dvd copy app. m-dvd copy-2 for-mac-dmg.
> Regards Bill
> 
> On Fri, May 19, 2017 at 11:04 AM, Ronni Brown <ro...@mac.com> wrote:
> Hello Juliet,
> 
> What operating system are you using? If it is macOS Sierra.
> 
> Gatekeeper in macOS Sierra is now stricter than ever, defaulting to only 
> allow options for apps downloaded from either the App Store or the App Store 
> and identified developers. 
> Advanced Mac users may wish to allow a third option, which is the ability to 
> open and allow apps downloaded from anywhere in macOS Sierra.
> 
> 
> To be clear, the “Allow applications downloaded from anywhere” option is 
> hidden by default in Gatekeeper for macOS Sierra. You can see this by going 
> to the Security & Privacy preference panel, and under the “General” section 
> you will not find such an option for Gatekeeper app allow settings. 
> Despite that, with a little command line intervention you can reveal the 
> third option and regain the ability to open apps that come from anywhere.
> 
> This is not recommended for most Mac users, only advanced Mac users and 
> developers who have the ability to accurately gauge app validity should use 
> this method, which involves disabling Gatekeeper from the command line, 
> thereby removing the standard Gatekeeper security mechanisms in Mac OS.
> 
> I won’t send you the Terminal command unless you are very sure about the 
> Application you wish to install and are fully aware of the security risk you 
> take when installing an unidentified application.
> 
> Cheers,
> Ronni
> 
> 13-inch MacBook Air (April 2014)
> 1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz
> 8GB 1600MHz LPDDR3 SDRAM
> 512GB PCIe-based Flash Storage
> 
> macOS Sierra 10.12.4
> 
>> On 19 May 2017, at 10:26 am, Juliet Kitson <billand...@gmail.com> wrote:
>> 
>> Hello
>> I have a down loaded app that I want to install but because it is not from 
>> app store or identified source how do I overcome this.
>> Regards Bill
>> 
> 
> 
> 
> 
> 
> 
> 
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