Apple Cannot Check Pop-up Virus Error – Removal Guide

“Apple Cannot Check” is the name of series of pop-ups that can appear on your Mac book. Those pop-ups present a process or a software that could be risky and even a virus on your Mac.

“Apple Cannot Check” Pop-up

“Apple Cannot Check” is a pop-up that indicates that your Mac book does not want to get involved with a particular file. While the file may be trusty for you, the pop-up indicates that it could be a virus. So to open the file, you will need to allow it from the Security settings of your Mac. If however a virus and you have already opened it, read this article to learn about the consequneces of opening “Apple Cannot Check” type of viruses and how to remove them from your computer.

Threat Summary

NameApple Cannot Check
TypePop-up for Mac OS
Short DescriptionMost likely Apple’s official pop-up when you run a dangerous app or program. If presented by a virus it may perform pop-ups designed with the primary purpose to likely get you to download and install dubious software.
SymptomsA pop-up saying that a file cannot be opened, due to it being allegedly a virus downloaded on your Mac.
Distribution Method
Detection Tool See If Your System Has Been Affected by malware


Combo Cleaner

User ExperienceJoin Our Forum to Discuss Apple Cannot Check.

Apple Cannot Check – Description

The primary message of Apple Cannot Check is the following:

“{PROGRAM NAME}” can’t be opened because Apple cnnot check it for malicious software.
This software needs to be updated. Contact the developer for more information.

Here is an example when the offical Gatekeeper pop-up appears:

We have seen enough dubious software over the years to notice that this pop-up could be legitimate. But bear in mind that it is also extremely possible that the software that could be a virus could be displaying exact copies of those pop-ups just to lure you into connecting to the web and performing an update that is usually fake and may slither all sorts of malware and adware on your Mac, such as:

  • Keyloggers.
  • Browser Hijackers.
  • Backdoor Trojans.
  • Scam software.

Either way, if the pop-up is presented outside of your browser and it is related to some sort of software and not coming from Apple’s Gatekeeper, because that is where the original message comes from. If not, then you are dealing with a virus.

However, bear in mind that if your pop-up is legitimate, then you could be risking to endanger your Mac with a virus. This is how to turn on Gatekeeper access.

Step 1: Open System Preferences and then click on Security and Privacy.

Step 2: Click under where it says Allow apps to be downloaded from, click on the “Open Anyway” button.

Now try to open the app and see if it works.

Apple Cannot Check Error Pop-up – What to Do If Infected?

Bear in mind that there is only one course of action if your Mac has a virus or at least you believe it has. To fix or check for viruses, manually, we do recommend that you follow the steps that are poste underneath this article. Bear in mind that if you want a fast and automatic removal, you can do what most cyber-security professionals would and download and run a scan of your Mac, using a professional anti-malware software. Such tool will effectively guarantee that the Apple Cannot Check error message stops appearing and that you can remove the virus that may be caused because of opening applitations that cannot be checked for malicious software. More so, having such program fills in the spaces that are needed where Gatekeeper – your Mac’s embedded protection cannot check. Such software will make sure that you are always protected, even if you open files after seeing the Apple Cannot Check message.


Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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with SpyHunter for Mac
Apple Cannot Check may remain persistent on your system and may re-infect it. We recommend you to download SpyHunter for Mac and run free scan to remove all virus files on your Mac. This saves you hours of time and effort compared to doing the removal yourself.
Free Remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy

Preparation Phase:

Before starting to follow the steps below, be advised that you should first do the following preparations:

  • Backup your files in case the worst happens.
  • Make sure to have a device with these instructions on standy.
  • Arm yourself with patience.

Step 1: Uninstall Apple Cannot Check and remove related files and objects

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy

1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:

2. Find Activity Monitor and double-click it:

3. In the Activity Monitor look for any suspicious processes, belonging or related to Apple Cannot Check:

Tip: To quit a process completely, choose the “Force Quit” option.

4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.

5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Apple Cannot Check. If you find it, right-click on the app and select “Move to Trash”.

6. Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Apple Cannot Check. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.

7. Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove Apple Cannot Check via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1. Click on "Go" and Then "Go to Folder" as shown underneath:

2. Type in "/Library/LauchAgents/" and click Ok:

3. Delete all of the virus files that have similar or the same name as Apple Cannot Check. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents

Tip: ~ is there on purpose, because it leads to more LaunchAgents.

Step 2: Remove Apple Cannot Check – related extensions from Safari / Chrome / Firefox

Remove an extension from Safari and reset it.Remove a toolbar from Google Chrome Remove a toolbar from Mozilla Firefox

1. Start Safari

2. After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.

3. From the menu, click on "Preferences"

stf-safari preferences

4. After that, select the 'Extensions' Tab


5. Click once on the extension you want to remove.

6. Click 'Uninstall'

stf-safari uninstall

A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Apple Cannot Check will be removed.

How to Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.

Start Safari and then click on the gear leaver icon.

Click the Reset Safari button and you will reset the browser.

1. Start Google Chrome and open the drop menu

2. Move the cursor over "Tools" and then from the extended menu choose "Extensions"

3. From the opened "Extensions" menu locate the add-on and click on the garbage bin icon on the right of it.

4. After the extension is removed, restart Google Chrome by closing it from the red "X" in the top right corner and start it again.

1. Start Mozilla Firefox. Open the menu window

2. Select the "Add-ons" icon from the menu.

3. Select the Extension and click "Remove"

4. After the extension is removed, restart Mozilla Firefox by closing it from the red "X" in the top right corner and start it again.

Step 3: Scan for and remove Apple Cannot Check files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as Apple Cannot Check, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.

Click the button below below to download SpyHunter for Mac and scan for Apple Cannot Check:


SpyHunter for Mac

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