Issues with Linked Helper installation on Mac

• linked-helper.dmg is damaged and can’t be opened. You should move it to the Bin
• linked-helper can't be opened because it was not downloaded from the App Store
• The application "App Store" can't be opened.
• Open a Mac app from an unidentified developer

"linked-helper.dmg" is damaged and can’t be opened. You should move it to the Bin

If you can't install Linked Helper 2 and are receiving a "linked-helper.dmg is damaged and can’t be opened. You should move it to the Bin" error, then you need to download the installation file from any other web browser. Most of the time the root of the issue is that the web browser is not downloading the file correctly.

If downloading a file from another web browser has not solved the issue, please, try the solution below.

linked-helper can't be opened because it was not downloaded from the App Store

If you have set your Mac to allow apps only from the App Store and you try to install an app from elsewhere, your Mac will say that the app can't be opened because it was not downloaded from the App Store.

If your Mac is set to allow apps from the App Store and identified developers, and you try to install an app that isn’t signed by an identified developer and—in macOS Catalina and later—notarized by Apple, you also see a warning that the app cannot be opened.

Linked Helper 2 is a signed application, but some of our customers may see such a warning. If you see this warning, it means that Apple could not scan the app for known malicious software for some reason and you need to enable installation from an unidentified developer as per the instruction below. Do not worry, Linked Helper is safe and does not contain viruses or malware.

The application "App Store" can't be opened.

It could be that your Mac thinks that Linked Helper 2 is not registered with Apple by an identified developer. This issue happened with only a small part of our clients who use Mac, most of them do not experience such a problem.

As per Apple's support, if you try to open an app that isn’t registered with Apple by an identified developer, you get a warning dialogue. This doesn’t necessarily mean that something’s wrong with the app. To install and open the app, please follow the instruction below. 

Open a Mac app from an unidentified developer

If you use macOS Big Sur, you can follow this short official instruction from Apple support: Open a Mac app from an unidentified developer ​

In macOS Catalina and macOS Mojave, when an app fails to install because it hasn’t been notarized or is from an unidentified developer, it will appear in System Preferences > Security & Privacy, under the General tab. Click Open Anyway to confirm your intent to open or install the app.

The warning prompt reappears, and you can click Open.*

The app is now saved as an exception to your security settings, and you can open it in the future by double-clicking it, just as you can any authorized app.