“Your computer restarted because of a problem” when installing macOS Big Sur in external SSD?

1. Why does my Mac keep saying your computer restarted because of a problem?
2. Why does my Mac keep crashing and restarting?
3. How do I fix my IMAC from restarting?
4. How do I stop kernel warnings randomly shutting down my Mac?
5. How do I restore factory settings on my MacBook air?
6. How do you reset RAM on a Mac?
7. Why does my computer keep restarting by itself?
8. How do I find out why my Mac keeps crashing?
9. What to do when your Mac keeps shutting off?
10. How do I run Apple Diagnostics?
11. Why does my iMac shut down randomly?
12. How do I boot my Mac into recovery mode?

Why does my Mac keep saying your computer restarted because of a problem?

Rarely, your Mac might experience a software or hardware issue that requires it to restart. When it starts up again, you might see a message that your computer was restarted because of a problem. Unexpected restarts are usually caused by software installed on your Mac, or by devices connected to your Mac.

Why does my Mac keep crashing and restarting?

Sometimes a missed MacOS update or an update problem can cause issues with your Mac settings and the update process. This confuses your Mac and can lead to repeated restarts. The easiest way to fix these issues is to install all available updates that are compatible with your Mac.

How do I fix my IMAC from restarting?

How to Fix a Mac that Keeps Rebooting

1. 1 Force Restart the Mac. If your Mac computer is showing a Kernel Panic screen, is frozen or not responding, you may need to forcefully restart it. ...
2. 2 Check for Updates. Select the Apple menu, then App Store. ...
3. 3 Check Startup Programs. Select the Apple Menu and then System Preferences. ...
4. 4 Reinstall macOS.

How do I stop kernel warnings randomly shutting down my Mac?

Software solutions to fix Kernel Panic on Mac

1. Update all your software.
2. Find which apps are corrupted.
3. Ensure you have enough free space on the drive.
4. Launch Disk Utility.
5. Disable startup items.
6. Turn off peripheral devices.
7. Run Apple Diagnostics.

How do I restore factory settings on my MacBook air?

How to reset a MacBook Air or MacBook Pro

1. Hold down the Command and R keys on the keyboard and turn on the Mac. ...
2. Select your language and continue.
3. Choose Disk Utility and click Continue.
4. Choose your startup disk (named Macintosh HD by default) from the sidebar and click the Erase button.

How do you reset RAM on a Mac?

Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. You can release the keys after about 20 seconds, during which your Mac might appear to restart. On Mac computers that play a startup sound, you can release the keys after the second startup sound.

Why does my computer keep restarting by itself?

Why does my computer keep restarting? There could be multiple reasons for the computer to keep restarting. It could be because of some hardware failure, malware attack, corrupted driver, faulty Windows update, dust in the CPU, and many such reasons.

How do I find out why my Mac keeps crashing?

The system crash can be the “reaction” of your macOS to crashes of some app on your Mac. It often happens that the version of the application becomes incompatible with the current macOS version. It's a well-known rule that you need to update the apps as soon as a new version is released.

What to do when your Mac keeps shutting off?

How to stop your MacBook from shutting down automatically

1. Complete a proper shutdown.
2. Check your Mac for malware.
3. Reset your SMC settings.
4. Monitor your battery health.
5. Update your macOS.
6. If the issue persists.

How do I run Apple Diagnostics?

Start Apple Diagnostics

1. Turn on your Mac and continue to press and hold the power button as your Mac starts up.
2. Release when you see the startup options window, which includes a gear icon labeled Options.
3. Press Command (⌘)-D on your keyboard.

Why does my iMac shut down randomly?

Faulty wiring or power supplies could be to blame. Users continue to report an issue in which various iMac models randomly shut down during routine operation. ... In the case of the iMac that's sensitive to touch, it's very possible a loose connection in the power system causes the thing to disconnect and shut down.

How do I boot my Mac into recovery mode?

How to start Mac in Recovery Mode

1. Click on Apple logo at the top left of the screen.
2. Select Restart.
3. Immediately hold down the Command and R keys until you see an Apple logo or spinning globe. ...
4. Eventually your Mac will show the Recovery Mode Utilities window with the following options: