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Using either the pointer or arrow keys on the keyboard, select the USB drive you wish to boot from.
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The utility will look for any available drives that include bootable content. Once the Startup Manager screen appears, release the Option key.
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Holding that key gives you access to OS X’s Startup Manager. When you hear the startup chime, press and hold the Option key.Press the Power button to turn on your Mac (or Restart your Mac if it’s already on).Insert the USB boot media into an open USB slot.Getting your Mac to load from a USB drive is fairly straightforward. So if your system is unstable, you need to run a diagnostic tool on the hard drive, or you just want to load a Linux desktop just to see what it’s all about, let’s look at how you start your machine using rescue USB boot media. How you start that rescue media can vary depending on the operating system you are using, but there are a few general guidelines that can help get your machine started, regardless of the OS you prefer. As a result, booting from USB media is becoming the standard. Lingon X can help you open specific apps on a schedule.And while users historically would pop a boot media disk into their DVD or CD drive, many computers no longer come with optical disk drives. Programs like Delay Start and DelayedLauncher let you set a timer for specific apps to control when they start up. If you like startup apps but want to avoid having them all open at once, there are tools that will help you delay them at launch. Utility programs like CleanMyMac X, MacKeeper, and Nektony's App Cleaner & Uninstaller can help identify daemons and agents and manage their removal. If this all sounds too complicated, don't worry. There are also LaunchAgents and LaunchDeamons folders within your Mac's System folder that you should not mess with because your computer needs them to function properly. If you don't know what something is for, search its name online before proceeding. However, we don't recommend deleting every. You may also find files matching programs that are no longer installed these can also be removed. This will stop the program from telling macOS it needs to be launched. If you see a file name that matches a program you know continues to launch on startup, you can freely delete it. plist files that may be connected to a certain program or service. Select the Library folder that appears and again look for LaunchAgents and LaunchDeamons folders. Open Finder, click Go, and hold down the the Option key. They may also be separately stored within your computer's hidden files. Open your disk drive in Finder-it's usually named Macintosh HD by default-then open Library and look for folders named LaunchAgents and LaunchDeamons. They can even be used for nefarious purposes. These files are hidden in places you won't normally look and tell the computer to launch programs independently of regular startup items. If you still have certain programs opening when you boot up your Mac, it's likely due to launch daemons and agents hidden within your libraries. Continue holding until the Dock appears, and the startup apps won't load that time. Enter your login information as you normally would, but hold down the Shift key on the keyboard before submitting your credentials. Just tick the Hide box next to each app listed.ĭon't want to wait but aren't ready to disable everything yet? You can temporarily disable startup apps.
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This ensures the program won't get in your way but will be ready to use when it's needed. If you prefer, certain apps can be set to launch at startup without necessarily popping up onto the screen. To remove a specific app, highlight it and click the minus button under the list. Go to System Preferences > Users & Groups > Login Items for a list of apps set to launch on startup. Instead of hunting for each app, though, you can do it all from one place.