How do I fix my iMac if it wont boot up?

Press and hold the power button on your Mac for up to 10 seconds, until your Mac turns off. Then turn your Mac back on. If the issue persists, press and hold the power button until your Mac turns off. Then unplug all accessories from your Mac, including printers, drives, USB hubs, and other nonessential devices.

Similarly, How do you unfreeze an iMac?

How to quickly unfreeze your Mac

1. Press Command- Esc-Option on your keyboard at the same time, then release them. …
2. Select the name of the frozen application from the menu’s list and click Force Quit. …
3. If the Force Quit menu doesn’t appear or the frozen program doesn’t close, you’ll need to restart your computer.

Additionally, Why is my iMac stuck on the startup screen? Shut the Mac down, usually by pressing the power button; Now press the Command, Option, R, P keys for at least 20 seconds (sometimes 30 might produce better results); Your Mac should restart automatically and if it gets past the loading screen then the problem is solved.

What do I do if my Mac screen is black and wont turn on?

Press and hold the power button for about 10 seconds. Press and release the power button, then immediately press and hold Command (⌘)-R until you see an Apple logo or other image. If you still see a blank screen after about 20 seconds, contact Apple Support.

Why is my Mac not responding?

Reboot your Mac

If you can’t Force Quit an unresponsive application, then it’s time for a reboot. … How to reboot a Mac that is not responding: Hold down the power button for several seconds. If that doesn’t work, Press the Control-Command keys down, then press the Power button.

What do I do if my iMac freezes?

What to Do when Your Mac Freezes

1. Use Force Quit when an application is unresponsive. Choose Force Quit from the Apple menu or press Command+Option+Esc keys. …
2. Restart. If Force Quit doesn’t bail you out, try rebooting the computer. …
3. Restart in Safe Mode.

What causes my iMac to freeze up?

Your Mac can freeze if there isn’t enough open space. To check your Mac’s free hard drive space, go to the Apple menu > About This Mac > and click the Storage tab. Click the Manage button to optimize your storage. You may also consider emptying your Trash can.

What do you do if your Mac is not responding?

How to reboot a Mac that is not responding:

1. Hold down the power button for several seconds.
2. If that doesn’t work, Press the Control-Command keys down, then press the Power button.

Why is my Mac loading but not turning on?

If your Mac is booting but the operating system isn’t loading up, you may have a corrupted drive. Luckily it is possible to fix this in Recovery Mode. … Hold down the Command and R keys, and power the Mac back up again. Keep pressing Cmd + R while your Mac is booting up until you see the Apple logo.

Why does Mac take forever to restart?

Close Down Apps More Quickly. Hanging software is another common reason why your Mac takes too long to shut down. macOS attempts to close all open apps when it starts to shut down. But occasionally apps won’t comply, especially if you’ve been pushing your computer hard by using all the available memory.

Why did my Mac screen turn black?

Your Mac notebook computer may be out of power

If your Mac notebook computer’s screen goes black, but is not in sleep, it may be out of power. Plug the power adapter into the computer and into a power outlet. Unplug any devices that are connected to your computer, except the power adapter.

How do I troubleshoot the black screen of death?

Repair a Black Screen of Death in Safe Mode

1. Click Advanced options then Troubleshoot.
2. From here go to Advanced options > Startup Settings > Restart.
3. Select option 4, Enable Safe Mode.
4. Wait for Windows Safe Mode to start.
5. Once booted, press Windows + X.
6. In the Quick Link menu select Device Manager.

Why does my Mac screen suddenly go black?

Why Does My Mac Go Black? Running out of battery is one of the most common reasons why your Mac screen goes blank. Even if your Mac is plugged in, a bad battery or a faulty cable can stop your Mac from charging and thus the Mac showsss black screen and becomes unresponsive.

How do I fix my Mac not responding?

Restart. If Force Quit doesn’t bail you out, try rebooting the computer. If a frozen Mac prevents you from clicking the Restart command on the Apple menu, hold down the power button for several seconds or press the Control+Command keys and then press the power button.

How do you start an unresponsive Mac?

However, in some cases—for example, if your Mac becomes unresponsive—you may need to use a different startup method. Press and hold the power button on your Mac until it shuts off. After a moment, press the power button again to start your Mac. You may lose unsaved changes in open documents.

Why is my Mac freezing?

If your Mac keeps freezing, it could be that the SMC needs to be reset. … If you’re using a Mac desktop without a T2 chip (such as an iMac), switch it off, unplug the power cord and wait 15 seconds, plug it back in, then turn on your Mac. If your Mac has a T2 chip, the process is different.

How do you restart a frozen Mac without the power button?

All it takes to force a restart of a frozen MacBook Pro with Touch Bar is to press down on the Touch ID button until the device reboots.

How do I unfreeze my Mac without losing my work?

Go to the Apple menu:

1. Press the combination Cmd+Option+Esc, and a window will pop-up.
2. After pressing the above keyboard combination, the Force Quit Applications should appear, select Microsoft Word and then click on the “Force Quit” button. The Mac will also display a list of programs.

How do I force quit my Mac when it won’t force quit?

If the app still doesn’t quit, then follow these steps:

1. Simultaneously press these three keys: Option, Command, and Esc (Escape).
2. Select the app in the Force Quit window, and then click Force Quit.

How do I empty my Mac cache?

How to clean your system cache on Mac

1. Open Finder. From the Go menu, select Go to Folder…
2. A box will pop up. Type in ~/Library/Caches/ and then click Go.
3. Your system, or library, caches will appear. …
4. Here you can open up each folder and delete unneeded cache files by dragging them to the Trash and then emptying it.

Why does my Mac not respond?

If your system is not responding, or you can’t open any of the Force Quit menus, you can force the computer to reboot. … Press ⌘ Command + Ctrl + ⏏ Eject to force the computer to reboot. The ⏏ Eject key can be found in the upper-right corner of the keyboard. Newer MacBooks may not have an ⏏ Eject key.

How long does restarting your Mac take?

By long I mean up to 4 to 6 minutes. I start with the grey screen and after about 30 seconds I get the dark grey apple and then the rotating bar. That goes on for about 90 seconds and then the screen turns blue. It can stay that way for a few minutes until my background photo and various desktop icons come up.

How long does a Mac reset take?

I’d estimate anywhere from 1 to 5 hours would be the norm but it’s possible for it to take up to 12 hours. Make sure you erase everything securely before selling it so the buyer can’t recover your saved passwords.

Why does my Mac take so long to wake up?

You may have guessed this already, but the reason some Macs take a long time to wake from sleep is that process of copying contents of sleepimage back into memory, and typically the more RAM you have in a Mac the slower the process can be.