Catalina Cannot Be Installed On My Mac

  

Nov 16, 2020 It’s been a while that macOS Catalina 10.15 is released and this is the latest Apple Mac Operating system up to now. In this article, I’m going to show you step by step to install macOS Catalina on VirtualBox on Windows PC.

  1. Nov 03, 2020 Hello Mates, I need some help with my Mac Pro 3.1 with (Catalina OS). I bought a graphics card (Sapphire Radeon HD 7950 3GB GDDR5) and installed it on my Mac but can’t get it to display 3 monitors, although am using all the direct outputs (Mac) to the corresponding inputs (monitors).
  2. After updating to Catalina several of my previously installed working apps would not work and had a notification about them needing an update through the App Store. The app store does not load, it stays on a blank screen (part black, part gray) with the spinning wheel. It doesn’t close when I try to restart it (had to use force quit).

All Mac OS versions run on a technology called Gatekeeper, It’s designed to ensure that only trusted software runs on your Mac. If the software you are trying to open is not certified you will see a message like this “can’t be opened because apple cannot check it for malicious software.”

Top Examples

  • “mysqlworkbench” can’t be opened because apple cannot check it for malicious software.
  • “sourcetree” can’t be opened because apple cannot check it for malicious software.

Note: Allowing apps to be installed manually brings potential risk from malware. Programs like Source Tree are legit, however try to make sure you are downloading the latest version of the software and from an authorized website before proceeding.

Catalina

Bypass “Can’t be opened because apple cannot check it for malicious software.”

Most applications can be easily opened by this method:

Time Needed :2 minutes

“Can’t be opened because apple cannot check it for malicious software.”

  1. Method 1

    System Preferences -> Security & Privacy -> click “Open Anyway”.

  2. Method 2 – Right Click App

    Instead of double clicking on the app, just right click and press Open.
    You will get a notice “Can’t be opened because apple cannot check it for malicious software.” however you will still get the option to open the program

  3. Method 3 “Works for Mac OS Catalina”

    Open “Terminal” App — Applications > Terminal. Use xattr to remove the app from quarantine. Source Reddit
    $ xattr -d com.apple.quarantine <app-path>

Materials
  • Mac OS Catelina, Mojave and Older

Apple has removed the option allow all third Party Applications.

Since the release of the Mac OS Catalina apple has removed the option in the Security and Privacy settings to allow programs from “Anywhere” to be downloaded. From now on only individual programs can be given permission to be installed.

  1. Why do I get the message “can’t be opened because apple cannot check it for malicious software.”

    Many programs have a notarization issue since the Catalina Update. Apple has tightened its privacy policies and has limited certification to apps only in the app store. Even though there are workarounds most users might feel an unease to install such programs.

Most Common “can’t be opened because apple cannot check it for malicious software.” Errors

  • “java 8 update 251” can’t be opened because apple cannot check it for malicious software.
  • “jdk 8 update 251.pkg” can’t be opened because apple cannot check it for malicious software.
  • “sourcetree” can’t be opened because apple cannot check it for malicious software.
  • “runescape” can’t be opened because apple cannot check it for malicious software.
  • “mongodb compass” can’t be opened because apple cannot check it for malicious software.
  • “mysqlworkbench”
  • “Origin”
  • “macperformance”
  • “appium”
  • “nox app”
  • “install”

“mysqlworkbench” can’t be opened because apple cannot check it for malicious software.

“mysqlworkbench” refers to MySQL Work Bench is a legitimate program and it should not be considered malware. It is a unified visual tool for database architects, developers, and DBAs. MySQL Workbench also provides data modeling, SQL development, user administration, backup, and much more. MySQL Workbench compatible with most version of Mac OS X, including the latest version Mac OS 10.15.5

“sourcetree” can’t be opened because apple cannot check it for malicious software.

Sourcetree most definitely is not malicious. It interacts with your Git repositories and visualizes and manages your repositories through Sourcetree’s simple Git GUI. It is a Free Git client that is compatible with both Mac OS 10 and Windows 10. Make sure you have downloaded the latest version of SourceTree for Mac

“java 8 update 251” can’t be opened because apple cannot check it for malicious software.

“Java 8 Update 251” (8u251) refers to the latest version of Java 8.0. This is not malicious software however you cannot download the software from the app store therefore the pop up message will show up in all cases. If you are interested in what the latest updates includes you can check out the official update release for Java here.

mysql-8.0.21-macos10.15-x86_64.pkg

The latest MySQL package for mac is appearing to have the same problem. Installing it directly from the official MySQL page will still lead to the same message “mysql-8.0.21-macos10.15-x86_64.pkg” can’t be opened because apple cannot check it for malicious software.

Alternative messages

Some users have been receiving a similar message “macOS cannot verify that this app is free from malware”. It is again related to gatekeeper technology where the application is not verified by apple. Many reputable applications have such a message when trying to install on a mac.

Cannot be opened because it is from an unidentified developer mac

In this case MacOS is not mentioning that this application is potentially dangerous. This is somewhat confusing as many unidentified developer apps for Mac do receive a message that it cannot be checked for malicious software. If you do however get this message you can still bypass and open the app with the same instructions above.

macOS Catalina introduces Voice Control, a new way to fully control your Mac entirely with your voice. Voice Control uses the Siri speech-recognition engine to improve on the Enhanced Dictation feature available in earlier versions of macOS.1

How to turn on Voice Control

After upgrading to macOS Catalina, follow these steps to turn on Voice Control:

  1. Choose Apple menu  > System Preferences, then click Accessibility.
  2. Click Voice Control in the sidebar.
  3. Select Enable Voice Control. When you turn on Voice Control for the first time, your Mac completes a one-time download from Apple.2
    Voice Control preferences

When Voice Control is enabled, you see an onscreen microphone representing the mic selected in Voice Control preferences.

Catalina Cannot Be Installed On My Mac Browser

To pause Voice Control and stop it from from listening, say ”Go to sleep” or click Sleep. To resume Voice Control, say or click ”Wake up.”

How to use Voice Control

Get to know Voice Control by reviewing the list of voice commands available to you: Say “Show commands” or ”Show me what I can say.” The list varies based on context, and you may discover variations not listed. To make it easier to know whether Voice Control heard your phrase as a command, you can select ”Play sound when command is recognized” in Voice Control preferences.

Basic navigation

Voice Control recognizes the names of many apps, labels, controls, and other onscreen items, so you can navigate by combining those names with certain commands. Here are some examples:

  • Open Pages: ”Open Pages.” Then create a new document: ”Click New Document.” Then choose one of the letter templates: 'Click Letter. Click Classic Letter.” Then save your document: ”Save document.”
  • Start a new message in Mail: ”Click New Message.” Then address it: ”John Appleseed.”
  • Turn on Dark Mode: ”Open System Preferences. Click General. Click Dark.” Then quit System Preferences: ”Quit System Preferences” or ”Close window.”
  • Restart your Mac: ”Click Apple menu. Click Restart” (or use the number overlay and say ”Click 8”).

You can also create your own voice commands.

Number overlays

Use number overlays to quickly interact with parts of the screen that Voice Control recognizes as clickable, such as menus, checkboxes, and buttons. To turn on number overlays, say ”Show numbers.” Then just say a number to click it.

Number overlays make it easy to interact with complex interfaces, such as web pages. For example, in your web browser you could say ”Search for Apple stores near me.” Then use the number overlay to choose one of the results: ”Show numbers. Click 64.” (If the name of the link is unique, you might also be able to click it without overlays by saying ”Click” and the name of the link.)

Voice Control automatically shows numbers in menus and wherever you need to distinguish between items that have the same name.


Grid overlays

Use grid overlays to interact with parts of the screen that don't have a control, or that Voice Control doesn't recognize as clickable.

Say “Show grid” to show a numbered grid on your screen, or ”Show window grid” to limit the grid to the active window. Say a grid number to subdivide that area of the grid, and repeat as needed to continue refining your selection.

To click the item behind a grid number, say ”Click” and the number. Or say ”Zoom” and the number to zoom in on that area of the grid, then automatically hide the grid. You can also use grid numbers to drag a selected item from one area of the grid to another: ”Drag 3 to 14.”

To hide grid numbers, say ”Hide numbers.” To hide both numbers and grid, say ”Hide grid.”

Dictation

When the cursor is in a document, email message, text message, or other text field, you can dictate continuously. Dictation converts your spoken words into text.

  • To enter a punctuation mark, symbol, or emoji, just speak its name, such as ”question mark” or ”percent sign” or ”happy emoji.” These may vary by language or dialect.
  • To move around and select text, you can use commands like ”Move up two sentences” or ”Move forward one paragraph” or ”Select previous word” or ”Select next paragraph.”
  • To format text, try ”Bold that” or ”Capitalize that,” for example. Say ”numeral” to format your next phrase as a number.
  • To delete text, you can choose from many delete commands. For example, say “delete that” and Voice Control knows to delete what you just typed. Or say ”Delete all” to delete everything and start over.

Voice Control understands contextual cues, so you can seamlessly transition between text dictation and commands. For example, to dictate and then send a birthday greeting in Messages, you could say ”Happy Birthday. Click Send.” Or to replace a phrase, say ”Replace I’m almost there with I just arrived.”

You can also create your own vocabulary for use with dictation.

Create your own voice commands and vocabulary

Create your own voice commands

  1. Open Voice Control preferences, such as by saying ”Open Voice Control preferences.”
  2. Click Commands or say ”Click Commands.” The complete list of all commands opens.
  3. To add a new command, click the add button (+) or say ”Click add.” Then configure these options to define the command:
    • When I say: Enter the word or phrase that you want to be able to speak to perform the action.
    • While using: Choose whether your Mac performs the action only when you're using a particular app.
    • Perform: Choose the action to perform. You can open a Finder item, open a URL, paste text, paste data from the clipboard, press a keyboard shortcut, select a menu item, or run an Automator workflow.
  4. Use the checkboxes to turn commands on or off. You can also select a command to find out whether other phrases work with that command. For example, “Undo that” works with several phrases, including “Undo this” and “Scratch that.”

To quickly add a new command, you can say ”Make this speakable.” Voice Control will help you configure the new command based on the context. For example, if you speak this command while a menu item is selected, Voice Control helps you make a command for choosing that menu item.

Create your own dictation vocabulary

  1. Open Voice Control preferences, such as by saying ”Open Voice Control preferences.”
  2. Click Vocabulary, or say ”Click Vocabulary.”
  3. Click the add button (+) or say ”Click add.”
  4. Type a new word or phrase as you want it to be entered when spoken.

Learn more

  • For the best performance when using Voice Control with a Mac notebook computer and an external display, keep your notebook lid open or use an external microphone.
  • All audio processing for Voice Control happens on your device, so your personal data is always kept private.
  • Use Voice Control on your iPhone or iPod touch.
  • Learn more about accessibility features in Apple products.

1. Voice Control uses the Siri speech-recognition engine for U.S. English only. Other languages and dialects use the speech-recognition engine previously available with Enhanced Dictation.

Catalina Cannot Be Installed On My Mac Computer

2. If you're on a business or school network that uses a proxy server, Voice Control might not be able to download. Have your network administrator refer to the network ports used by Apple software products.