With Keyboard //top\\ - How To Restart Macbook Air

There’s nothing more frustrating than a frozen screen or a trackpad that won’t click. In those moments, knowing how to control your MacBook Air entirely from the keyboard isn’t just a party trick—it’s essential. Whether you’re troubleshooting a crash, installing updates, or simply want to keep your hands on the home row, here’s everything you need to know about restarting your MacBook Air with keyboard shortcuts. The Standard (And Safest) Way Before diving into emergency overrides, try the proper, application-friendly restart. This method gives open documents a chance to save and closes programs gracefully.

Control + Command + Eject (or Power / Touch ID button) how to restart macbook air with keyboard

Press and hold the Control and Command keys simultaneously, then tap the Power button (or Touch ID button, or Eject key, depending on your model). Note on modern MacBook Air models (2018 and later): Apple replaced the traditional power key with the Touch ID sensor. On these models, the shortcut uses that same button. Just tap it—don’t hold it down. What happens next: Your Mac will ask if you’re sure you want to restart (unless you have unsaved changes in some apps). Press Return to confirm, or Esc to cancel. The “I’m in a Hurry” Shortcut (Force Restart) If your Mac is frozen—spinning beach ball of doom, unresponsive menu bar, cursor stuck—the polite restart may not work. In that case, you need a force restart. There’s nothing more frustrating than a frozen screen

There’s nothing more frustrating than a frozen screen or a trackpad that won’t click. In those moments, knowing how to control your MacBook Air entirely from the keyboard isn’t just a party trick—it’s essential. Whether you’re troubleshooting a crash, installing updates, or simply want to keep your hands on the home row, here’s everything you need to know about restarting your MacBook Air with keyboard shortcuts. The Standard (And Safest) Way Before diving into emergency overrides, try the proper, application-friendly restart. This method gives open documents a chance to save and closes programs gracefully.

Control + Command + Eject (or Power / Touch ID button)

Press and hold the Control and Command keys simultaneously, then tap the Power button (or Touch ID button, or Eject key, depending on your model). Note on modern MacBook Air models (2018 and later): Apple replaced the traditional power key with the Touch ID sensor. On these models, the shortcut uses that same button. Just tap it—don’t hold it down. What happens next: Your Mac will ask if you’re sure you want to restart (unless you have unsaved changes in some apps). Press Return to confirm, or Esc to cancel. The “I’m in a Hurry” Shortcut (Force Restart) If your Mac is frozen—spinning beach ball of doom, unresponsive menu bar, cursor stuck—the polite restart may not work. In that case, you need a force restart.

CPU Stress / Torture Testing

Prime95 has been a popular choice for stress / torture testing a CPU since its introduction, especially with overclockers and system builders. Since the software makes heavy use of the processor's integer and floating point instructions, it feeds the processor a consistent and verifiable workload to test the stability of the CPU and the L1/L2/L3 processor cache. Additionally, it uses all of the cores of a multi-CPU / multi-core system to ensure a high-load stress test environment.

From the most recent "stress.txt" file included in the download:

The Prime95 Wikipedia page has an excellent overview on using Prime95 to test your system and ensure it is working properly. The tips presented there should be helpful regarding how long to run the torture test and provide a solid guideline on how long to run the Prime95 stress test.

Performing a stress test is simple:

1. Download the software and unzip the files to your desired location.
2. Run the Prime95 executable and select "Just Stress Testing" when asked.
3. The default options are sufficient to do a well balanced stress test on the system.

Upgrade Instructions for Existing Users

1. Download the appropriate program for your OS

2. Upgrade the software. Stop and exit your current version, then install the new version overwriting the previous version. You can upgrade even if you are in the middle of testing an exponent.

3. Restart the program.

4. Read WhatsNew.txt

Questions and Problems

Please consult the readme.txt file for possible answers. You can also search for an answer, or ask for help in the GIMPS forums. Otherwise, you will need to address your question to one of the two people who wrote the program. Networking and server problems should be sent to . Such problems include errors contacting the server, problems with assignments or userids, and errors on the server's statistics page. All other problems and questions should be sent to , but please consult the forums first.

Disclaimers

See GIMPS Terms and Conditions. However, please do send bug reports and suggestions for improvements.

Software Source Code

If you use GIMPS source code to find Mersenne primes, you must agree to adhere to the GIMPS free software license agreement. Other than that restriction, you may use this code as you see fit.

The source code for the program is highly optimized Intel assembly language. There are many more-readable FFT algorithms available on the web and in textbooks. The program is also completely non-portable. If you are curious anyway, you can download all the source code (37.7MB). This file includes all the version 30.19b21 source code for Windows, Linux, FreeBSD, and Mac OS X. Last updated: 2024-09-14.

The GIMPS program is very loosely based on C code written by Richard Crandall. Luke Welsh has started a web page that points to Richard Crandall's program and other available source code that you can use to help search for Mersenne primes.

Other available freeware

At this time, Ernst Mayer's Mlucas program is the best choice for non-Intel architectures. Luke Welsh has a web page that points to available source code of mostly historical interest you can use to help search for Mersenne primes.