https://yellowcomedy635.weebly.com/mac-cant-open-app-from-unidentified-developer.html. If you’re trying to update or install apps but the update refuses to start or you have stuck downloads in the Mac App Store, then try the following fixes. Cancel and restart If you have stuck downloads in the Mac App Store or updates that won’t start, cancel them and try starting them again. To uninstall Office for Mac 2011 move the applications to the Trash.Once you've removed everything, empty the Trash and restart your Mac to complete the process. Before you remove Office for Mac 2011, quit all Office applications and make sure there's nothing in Trash that you want to keep. Leave Office applications closed while you go through this process. To remove a specific app, highlight it and click the minus button under the list. Hide Login Items on Startup Certain apps can still launch at startup without necessarily popping up on the screen. In the Stocks app on your Mac, Control-click a ticker symbol in the watchlist, then choose Remove from Watchlist. Reorder ticker symbols in your watchlist In the Stocks app on your Mac, select a ticker symbol in the watchlist, then drag it to another position in the list. I know /user applications are in a different folder then stock applications but I also know that this folder is accessible. You therefore (in theory, with correct permissions) should be able to delete the app's source files and changes would be visible on the next respring.
To open Launchpad, click it in the Dock or open it from your Applications folder. You can also pinch closed with your thumb and three fingers on your trackpad.
If you don't see the app in Launchpad, type its name in the search field at the top of the screen. Or swipe right or left with two fingers on your trackpad to show the next or previous page.
Press and hold the Option (⌥) key, or click and hold any app until the apps jiggle.
Click next to the app that you want to delete, then click Delete to confirm. The app is deleted immediately. Apps that don't show either didn't come from the App Store or are required by your Mac. To delete an app that didn't come from the App Store, use the Finder instead.
Deleting an app doesn't cancel any subscription you may have purchased with that app. App lifecycle management. Learn how to cancel subscriptions for apps that were downloaded from the App Store.
Use the Finder to delete an app
Locate the app in the Finder. Most apps are in your Applications folder, which you can open by clicking Applications in the sidebar of any Finder window. Or use Spotlight to find the app, then press and hold the Command (⌘) key while double-clicking the app in Spotlight.
Drag the app to the Trash, or select the app and choose File > Move to Trash.
If you're asked for a user name and password, enter the name and password of an administrator account on your Mac. This is probably the name and password you use to log in to your Mac.
To delete the app, choose Finder > Empty Trash.
How To Uninstall Apps Mac
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To use an app again after deleting it, either reinstall it or restore it from a backup.
To reinstall apps that were installed as part of macOS, reinstall macOS. This applies to apps such as Safari, iTunes, Books, Messages, Mail, Calendar, Photos, and FaceTime.
You can also redownload apps, music, movies, TV shows, and books that were installed from the App Store, iTunes Store, or Apple Books.
Mac Remove App From Toolbar
Learn how to delete apps on your iPhone, iPad, and iPod touch.
Learn what to do if the Dock contains an icon with a question mark.