Stop Users From Installing Software Mac

11.08.2020
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When macOS Mojave was announced, Apple warned that it would be the last version of macOS that would support older 32-bit apps. Apple has been phasing out 32-bit apps for the last 10 years and is now ready to take the final step, even if Mac users may not be ready to lose access to older apps.

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With the release of macOS Catalina, 32-bit app support is no longer available, which means many of your older apps will no longer work if they haven't been updated to 64-bit.

32-bit vs. 64-bit

32-bit apps date back to a time when there were 32-bit processors and 32-bit operating systems, but are now outdated. Apple has long since transitioned to 64-bit processors and macOS has been 64-bit since the launch of Snow Leopard in 2009.

Compared to 32-bit apps, 64-bit apps can take advantage of more memory and offer faster system performance. Apple technologies like Metal only work with 64-bit apps, and for Apple to ensure that Mac apps include all of the latest advancements and optimizations, support for 32-bit needs to end. In the simplest terms, 32-bit apps are inefficient.

32-bit apps can run on a 64-bit system as they've been doing for years, but Apple wants to get rid of outdated apps to make sure everything that runs on the Mac is properly optimized and isn't an unnecessary drain on system resources.

Previous Warnings

Apple started warning Mac users about plans to end support for 32-bit apps back with macOS High Sierra. In High Sierra, users started getting warnings about a 32-bit app's future incompatibility with macOS.

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A similar message was available in macOS Mojave, and if you opened up a 32-bit app while running Mojave, you saw an alert letting you know a specific app wouldn't work with future versions of macOS unless it was updated.

Alerts re-appeared every 30 days when launching an app, with Apple aiming to make sure customers would not be caught unaware when a 32-bit app stopped working in the future, so you should already know if one of your frequently used apps hasn't been upgraded to 64-bit.

Upon updating to ‌macOS Catalina‌, you'll be shown a list of 32-bit apps that no longer work on your system.

How to Check if an App is 32-Bit or 64-Bit in macOS Mojave

To determine whether an app is 64-bit or 32-bit and to see if there are 32-bit apps installed on your machine before upgrading to ‌macOS Catalina‌, follow these steps: Best peer blocking software for mac.

  1. Click the Apple symbol () in the menu bar on your Mac's desktop.
  2. Click on About This Mac.
  3. Choose 'System Report' at the bottom of the window.
  4. Scroll down to the Software list on the sidebar.
  5. Select Legacy Software.'

Anything in the list of Legacy Software applications is a 32-bit app and will not work when upgrading to ‌macOS Catalina‌.

If Legacy Software isn't an option in the sidebar, select the Applications option and then check the list of apps at the right. The column that's labeled 64-bit will show a 'No' listing for apps that are 32-bit.

How to Prepare to Update to ‌macOS Catalina‌

The first step is to make sure there aren't already available updates for apps that you have on your system, which you can generally do by updating through the Mac App Store for ‌Mac App Store‌ apps.

Apps outside of the ‌Mac App Store‌ use other update methods that can vary by app, but for many, you can click on the app's name in the menu bar and choose the 'Check for Updates' option. Some other apps have more hidden update methods, so if you do have a 32-bit app, make sure to Google how to update it to be sure there's not already new software available.

After ensuring you've updated everything you're able to update, you can contact developers and ask them to update their apps, but if that doesn't pan out, the only other solution is to start the search for an alternative app if you're committed to upgrading to ‌macOS Catalina‌ or have already done so.

32-Bit App Warnings When Installing Catalina

When upgrading to ‌macOS Catalina‌, the installer will show a list of recently used apps that are 32-bit so you know what to expect before installing.


After viewing this list, you can choose to either cancel or continue with the installation.

‌macOS Catalina‌ also shows a stop symbol over the icon of 32-bit apps in the Finder, so you know that the app isn't going to open.

Aperture

With the release of ‌macOS Catalina‌, Aperture is going to stop working. Apple warned Aperture users in April 2019 that the software won't run in future versions of macOS, starting with ‌macOS Catalina‌.

If you're an Aperture user, you'll have to transition to alternate photo editing and management software, such as Adobe's Lightroom. Aperture is not 32-bit, but Apple is phasing it out all the same.

Affected Media Formats

Certain media files that use older formats and codecs are also not compatible with macOS after macOS Mojave due to the 64-bit transition, and you will need to convert some iMovie and Final Cut Pro X libraries. Incompatible media files were created using codecs that rely on QuickTime 7, and while macOS Mojave has QuickTime 7 frameworks, future versions of macOS will not.

Apple has a full list of media formats that are going to be affected by the transition available in a support document.

Continuing to Use 32-Bit Apps

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In macOS Mojave and earlier versions of macOS like High Sierra, you can continue to use your 32-bit apps. If you have a 32-bit app that you absolutely depend on, you're going to want to think twice before upgrading to ‌macOS Catalina‌.

Guide Feedback

Have questions about the end of support for 32-bit apps or want to offer feedback on this guide? Send us an email here.

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Help! Windows 10 keeps installing strange apps, can’t stop it!

'Do you guys know how to stop newly updated Windows 10 from installing new app updates? Quite a lot space in my PC has been taken by these app updates. And it even installed some unwanted apps. If you have method to solve this problem, please help me. Thanks very much.'

'My computer keeps download and installing new app updates without asking me for permission. I don’t really want to install those strange apps such as Candy Crush. Do you know how to stop it? Please help me.'

Windows system will automatically download and install driver updates and app updates after updating Windows system into new version so to avoid compatible issue. And it’s quite normal for Windows 10 to install new app updates after the Windows 10 anniversary update. However, unwanted apps may also be installed in your PC. Here in the following passages, you’ll find effective method to stop Windows 10 installing unwanted apps without losing any data.

Prevent Mac Users From Installing Software

Recommended: Backup system and data first

In order to avoid unexpected data loss issue, you can try a professional Windows backup software to create system and data backup first. With the backups, you won’t have to suffer data loss or system crush error while trying to clean up unwanted apps in Windows 10.

EaseUS Todo Backup will help you simply backup the whole system and all your important files within simple 3 steps. No obstacles will be met and not technical skills are required. Free download it and backup system and data now.

Step 1. Turn off automatic app updates in Windows 10

  • Open Store > Click user icon at the top of the screen;
  • Click Settings and turn off Update apps automatically in App updates section.

Step 2. Block Candy Crush or other unwanted app in Windows 10

Here you have two access to block app update from Registry tweak or block unwanted apps in Windows 10 update. You can either choose one method to block apps in Windows 10 now.

#1. Block app updates from Registry tweak

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Press Windows + R, type: regedit and hit Enter;
Registry Editor file will show up in C:Windows directory and you can navigate to the folder and run regedit.exe directly;
Then open Registry Editor and go to:
HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindowsStore

Create a new 32-bit DWORD value named AutoDownload and set it to 2 to disable app auto-update;
After this, restart Windows 10.

#2. Block unwanted apps including Candy Crush from Windows 10 update

  • Press Win + R and open Run dialog;
  • Type: secpol.msc and hit Enter;
  • Local Security Policy app will appear and select Application Control Policies in the letf, then click Applocker;
  • Click Packaged app Rules, right click the right pane and select Create new rule;
  • Click Next when the Create new rule wizard shows up;
  • On the Permissions page, set Action to Deny, leave User or Group as Everyone;
  • Click Next, click Use an installed packaged app as reference > Select;
  • Select Windows Spotlight(Microsoft.Windows.ContentDeliveryManager) and click OK in the app list;
  • Move the slider to the Package Name option as shown below, then click Create.

After these steps, your PC won’t install automatic updates or apps without permission anymore. If you want to install new updates or apps, you’ll need to manually download and install in your PC. What about those already existed apps? You can removed them! How? Follow Step 3 to do it now.

Step 3. Clean-up junk files including unwanted apps from Windows 10

Those unwanted apps which have already been downloaded and installed in PC won’t be removed by blocking Windows 10 from installing app updates. Therefore, you may have one more step to clean up and remove unwanted apps on PC.
EaseUS Tools M will make it simple and easy for you to clean up all junk files including unwanted files by simple clicks:

Step 1. DOWNLOAD and install EaseUS Tools M. Select 'System Cleanup' on the main screen.

Step 2. Select the type of junk files you want to scan and click 'Analyze'.

Step 3. Identify and select useless files and click 'Clean up' to remove those files from your PC or laptop.