Oct 23, 2014 How To Change Startup Programs Mac OS X 10.10 Yosemite. How to stop apps from automatically launching at start up on MAC OS X - Duration: 0:37. Nirav Bhavsar 4,887 views. May 17, 2019 The fastest way to turn off startup items on Mac is an app like CleanMyMac X. Download CleanMyMac for free. Launch the app. Open Optimization tab. Click on Login items. From the list of apps, disable the ones you don’t need on startup. How to change startup programs manually?
By default, your Mac starts up from its built-in hard disk, but a startup disk can be any storage device that contains an operating system compatible with your Mac. For example, if you install macOS on an internal or external drive, your Mac can recognize that drive as a startup disk. You can then follow the steps in this article to start up from it.
Use Startup Disk preferences
When you use Startup Disk preferences to select a startup disk, your Mac starts up from that disk until you choose a different one.
- Choose Apple menu > System Preferences, then click Startup Disk.
- Click the lock and enter your administrator password.
- Select your startup disk, then restart your Mac.
If you see a message that your security settings do not allow this Mac to use an external startup disk, check the External Boot setting in Startup Security Utility.
Use Startup Manager
When you use Startup Manager to select a startup disk, your Mac starts up from that disk once, then returns to using the disk selected in Startup Disk preferences.
- Press and hold the Option (Alt) key immediately after turning on or restarting your Mac.
- Release the Option key when you see the Startup Manager window.
If your Mac is protected by a firmware password, you can release the key when you're asked to enter the password. - Select your startup disk, then click the arrow under its icon, or press Return.
If you press and hold the Control key during this step, your selection is saved in Startup Disk preferences, so it persists until you change it.
If your Mac is using OS X Lion 10.7.3 or later, you can also use this method to start up from your Time Machine backup disk. Startup Manager identifies your Time Machine backup as ”EFI Boot.”
If you can't select your startup disk or start up from it
Check for these possibilities if you can't see your disk in Startup Disk preferences or Startup Manager, or your Mac won't start up from it.
Check for a compatible operating system on the startup disk
Make sure that your startup disk is using a version of macOS that is compatible with your Mac.
To start up from an external disk with macOS Catalina 10.15 or later, the disk must connect via USB-A, USB-C, or Thunderbolt, not FireWire.
Check startup security settings
If you're using a Mac that has the Apple T2 Security Chip, check the settings in Startup Security Utility. These settings determine whether your Mac can start up from another disk.
Check for Option ROM firmware
If you're in Startup Manager and can't see a third-party startup disk, the startup disk could be using Option ROM firmware. To enhance system security, Mac computers with up-to-date software don’t show devices that use Option ROM firmware until you load their firmware. To do that, press Option-Shift-Command-Period while in Startup Manager. If your startup disk appears, do that each time you want to start up from it or from another disk connected to it.
If you're using a firmware password, the ability to load Option ROM firmware is disabled as an additional security protection.
Certain actions that you perform on your Mac will cause default apps to open. For example, clicking a document may open Pages. But what if you want Microsoft Word to open instead? You can also set your default web browser and email reader.
Here's how!
Change Startup Apps Mac Os X
How to change the default Mac app for specific file types
- Right-click on a file that uses the file type you'd like to change the default for. For example, one with a .jpg extension (a photo).
- Click on Get Info in the pop-up.
- Click Open With if the section isn't already expanded.
- Click the dropdown and choose an app.Source: iMore
- Click Change All...
- Click Continue when the Finder asks you if you're sure.Source: iMore
Now any time you open a file with that extension, the Finder will automatically open it with the app you've selected.
How to set your default web browser
- Launch System Preferences from the dock, Finder, or by clicking the Apple icon in the Menu bar.
- Click General at the top left of the window.
- Click the dropdown next to Default web browser.
- Click the web browser you'd like to use as the default.Source: iMore
How to set your default email reader
Mail is likely the default email app on your Mac, but just in case you have others downloaded, you can set the default reader. Here's how:
- Launch Mail from your dock or the Finder.
- Click Mail in the menu bar at the top of the screen.
- Click Preferences.
- Click the dropdown next to Default Mail Reader.
- Click the app you'd like to set as the default.Source: iMore
Questions?
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Updated February 2020: Updated for macOS Catalina!
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