Some Mac users say that they can't download programs from other website except Mac App Store, or they may can't be opened the download file. When they click on the download file, it says 'xxx can't be opened because it is from an unidentified developer'. For example:
If you are facing this problem while you are downloading & installing DoYourData Software, you can follow these simple steps to solve this issue.
Step 1: Click 'Launchpad' --> Find 'System Preference', and Open it --> Click 'Security & Privacy'.
The Microsoft Silverlight 5 for Windows download version 5.1.40620.0 is available. It includes all security fixes in MS15-044 and is functionally identical to Microsoft Silverlight 5 for Windows version 5.1.40416.0.This download is an upgrade for earlier versions of Silverlight. The NOW TV Player will download to wherever you’ve set as your preferred download location (the default on a Mac is the Downloads folder). Help tip If you accidentally clicked I've already got this but you don't already have the Player installed, don’t worry – you can download the Player here instead. Silverlight offers a flexible programming model that supports AJAX, VB, C#, Python, and Ruby, and integrates with existing Web applications. It supports fast, cost-effective delivery of high-quality video to all major browsers running on Mac OS or Windows OS.
Step 2: Change the setting, enable your Mac can download from 'Anywhere'.
If you have upgraded your Mac to macOS 10.12 Sierra or higher, you just click 'Open Anyway', like this:
Silverlight 4.0 Download Mac
Step 3: Re-download the software or re-open the download file on your Mac. Then install it on your Mac, you can follow this guide: http://www.doyourdata.com/support/product/mac/install-and-activate-mac-software-doyourdata.html
Microsoft Silverlight For Mac
DoYourData Mac software are 100% safe and clean. If you have any question, feel free to contact us by sending an email to [email protected].
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Want to watch NOW TV on your Mac? No problem. You’ll just need OSX 10.9 (Mavericks) or later to be able to install our NOW TV Player.
You'll need a NOW TV account too, so if you don't have one already, first start a free trial or buy a Pass.
How to install the NOW TV Player
Step 1
To trigger the Player download, you’ll need to choose something to watch. Head over to the NOW TV site, find a show, movie, sporting event or kids’ show, and hit play.
You’ll then be prompted to download the Player.The NOW TV Player will download to wherever you’ve set as your preferred download location (the default on a Mac is the Downloads folder).
Help tipIf you accidentally clicked I've already got this but you don't already have the Player installed, don’t worry – you can download the Player here instead.
Step 2
The file will start downloading:
Open the downloaded file and it will start installing:
Step 3
Drag and drop the Now TV Player into your applications folder.
![Silverlight Silverlight](/uploads/1/2/6/6/126604705/185850443.jpg)
Step 4
The first time you launch the NOW TV Player, you’ll see a message like this (it may look slightly different, depending on your browser). Just select Open: