The fastest way to reboot depends on whether your computer is responding

A reboot closes all running programs and restarts your operating system from scratch. It fixes most freezes, slow performance, and software glitches because it clears your computer's temporary memory and reloads everything fresh. The method you use depends on whether your computer is still responding to clicks and keyboard commands.

If your computer is working normally, use the shutdown menu—it takes 30 seconds and is the safest method. If your computer is frozen and won't respond, use the power button. If you need to restart without losing unsaved work, save your files first, then use the menu method.

Key Takeaways

  • The shutdown menu method (Start menu on Windows, Apple menu on Mac) is the standard way to reboot and takes about one minute from start to finish.
  • The power button method forces a restart when your computer is frozen, but you will lose any unsaved work in open programs.
  • A reboot clears your computer's temporary memory and reloads your operating system, which fixes most performance problems and software freezes.
  • After you reboot, wait at least 30 seconds before opening programs so your computer can finish loading in the background.
  • If your computer freezes again within hours of rebooting, a hardware problem or malware may be the cause and you should seek further help.

Reboot using the shutdown menu on Windows

Click the Start button in the bottom left corner of your screen. A menu will open showing your programs and settings. Look for the power icon (a circle with a line at the top) in the bottom right corner of the menu and click it.

A small submenu will appear with three options: Sleep, Shut down, and Restart. Click Restart. Your computer will close all open programs, shut down completely, and turn back on automatically. This takes about two to three minutes total. Do not unplug your computer or press the power button during this time.

If you have unsaved work in any programs, Windows will ask you to save before restarting. Save your files before clicking Restart to avoid losing work.

Reboot using the menu on Mac

Click the Apple menu in the top left corner of your screen. A dropdown menu will appear. Click Restart from the list. A dialog box will ask you to confirm—click Restart again.

Your Mac will close all open programs and restart automatically. This takes about two to three minutes. If you have unsaved work, macOS will ask whether you want to save before closing each program. Click Save for any files you want to keep.

If you want your programs to open again after the restart, check the box that says "Reopen windows when logging back in" before you click Restart. This saves time if you were working with multiple programs.

Force a restart when your computer is frozen

If your computer is not responding to clicks or keyboard commands, hold down the power button for 10 to 15 seconds until the screen goes black and the computer shuts down completely. Wait 30 seconds, then press the power button once to turn it back on. Do not hold it down—just press and release.

This method is harder on your computer than using the menu because programs do not close properly, but it is necessary when your computer is frozen. You will lose any unsaved work in programs that were open. After the computer restarts, check your files to see if any were damaged.

If your computer freezes regularly, restart it before it freezes completely. Restart once a week even if it seems to be working fine—this prevents problems from building up.

What happens during a reboot

When you restart, your computer closes all programs and clears its temporary memory (called RAM). It then reloads your operating system and all background services from your hard drive. This process takes two to three minutes and is why your computer is slower than usual for the first 30 to 60 seconds after it finishes restarting.

During a reboot, your files and settings stay exactly as they were—you are not erasing anything. A reboot is different from a factory reset, which erases everything and returns your computer to how it came from the store. A reboot straightforward reloads the same operating system and files.

What to do after your computer restarts

Wait at least 30 seconds before opening programs or files. Your computer is still loading background services and indexing files during this time. If you open programs too quickly, they may run slowly or freeze again.

Check whether the problem that made you reboot has gone away. If your computer was running slowly, it should be noticeably faster now. If it was freezing, try using it normally for a few hours to see if the freeze comes back. If the same problem happens again within a few hours, the cause may be a hardware issue or malware rather than a temporary software glitch.

Frequently Asked Questions

Will rebooting erase my files or settings?

No. A reboot reloads your operating system and all your files exactly as they were. Your documents, photos, passwords, and settings stay the same. You are only clearing temporary memory that your computer uses while running programs.

How often should I reboot my computer?

Once a week is a good routine for most people. If your computer runs slowly or freezes, reboot it when ready. If you use your computer heavily every day, rebooting twice a week prevents problems from building up in temporary memory.

What is the difference between restart and shutdown?

Restart closes everything and turns your computer back on automatically. Shutdown closes everything and turns your computer off completely—you have to press the power button to turn it back on. Both clear temporary memory, but restart is faster if you want to use your computer again right away.

Can I reboot while programs are open?

Yes, but save your work first. When you click Restart, your operating system will ask you to save any unsaved files before closing programs. If you ignore these prompts, you will lose work in programs that were open.

Why is my computer slow after I reboot?

Your computer is still loading background services and indexing files for the first 30 to 60 seconds after restart. Wait before opening programs. If your computer stays slow after five minutes, the reboot did not fix the problem and you may need to look for other causes like malware or a failing hard drive.