What Rebooting Does and When You Need It
A reboot closes every program running on your computer and restarts the operating system from scratch. It clears temporary files from memory, stops processes that have frozen or crashed, and often fixes problems that a straightforward pause cannot solve. If your computer is running slowly, a program has stopped responding, or you have installed software that asks you to restart, a reboot is the standard first step.
Rebooting is different from shutting down. A shutdown turns the machine off completely. A reboot shuts down and then starts up again automatically, all in one action. Most of the time, a reboot solves the problem faster than powering off and waiting for the machine to boot up on its own.
Key Takeaways
- A soft reboot using the Start menu or Apple menu is the safest method and works for most problems.
- A hard reboot — holding the power button until the screen goes black — should only be used when the computer is completely frozen and will not respond to keyboard or mouse.
- After you reboot, wait for all startup programs to finish loading before opening new applications, which usually takes one to three minutes.
- If rebooting does not fix the problem, check for Windows or macOS updates, which often require a reboot to take effect.
Soft Reboot on Windows Using the Start Menu
A soft reboot is the standard method and is safe to use at any time. On Windows, click the Start button in the bottom left corner of your screen. A menu will open. Look for the power icon — it looks like a circle with a line at the top — usually in the bottom right of the Start menu.
Click the power icon. A small menu will appear with three options: Sleep, Shut down, and Restart. Click Restart. Your computer will close all open programs and restart automatically. You do not need to save your work first — Windows will prompt you to save any unsaved documents before it closes them.
The reboot usually takes two to five minutes. During this time, you will see a black screen, the Windows logo, and possibly a spinning circle. Do not turn off the computer or press any buttons during this process. When the login screen appears, you can log back in.
Soft Reboot on Mac Using the Apple Menu
On a Mac, click the Apple menu in the top left corner of the screen. A dropdown menu will appear. Look for the option labeled Restart. Click it. A dialog box will ask if you want to reopen windows when you log back in — you can choose yes or no depending on your preference.
Your Mac will close all open programs and restart. Like Windows, the process takes two to five minutes. You will see the Apple logo and a progress bar. When the login screen appears, enter your password to log back in.
Hard Reboot When Your Computer Is Frozen
If your computer will not respond to the keyboard or mouse, and you cannot open the Start menu or Apple menu, a hard reboot is necessary. Locate the power button on your computer — on a desktop, it is usually on the front of the tower; on a laptop, it is typically on the side or keyboard.
Press and hold the power button for ten to fifteen seconds. The screen will go black and the computer will shut down completely. Wait thirty seconds, then press the power button once to turn it back on. The computer will restart normally.
A hard reboot can occasionally cause data loss if you were in the middle of saving a file, but it is the only option when the computer is completely unresponsive. Use it only when a soft reboot is not possible.
What to Do After the Reboot Completes
After your computer restarts and you log back in, wait one to three minutes before opening programs or files. During this time, Windows or macOS is loading startup programs and background services. Opening applications too quickly can slow down the reboot process or cause programs to behave unexpectedly.
If you rebooted because a specific program was frozen, try opening that program again. If it works normally, the reboot solved the problem. If the same program freezes again, the problem may be with that software rather than your computer, and you may need to uninstall and reinstall it.
When a Reboot Does Not Fix the Problem
If rebooting does not solve the issue, check whether your operating system needs an update. On Windows, open Settings, click Update & Security, and look for Windows Update. On Mac, click the Apple menu, select System Settings, then General, then Software Update. Install any available updates and reboot again if prompted.
Updates often fix problems that cause freezing, slow performance, or program crashes. After an update installs, your computer may ask you to restart — do so as soon as you can save your work, because the update will not take full effect until after the reboot.
Frequently Asked Questions
Will rebooting delete my files?
No. A reboot closes programs and restarts the operating system, but it does not delete files or folders. Any document, photo, or program you have saved will still be there after the reboot. Unsaved work in open programs will be lost, so save before rebooting if you have documents open.
How often should I reboot my computer?
There is no set schedule. Reboot when you notice the computer is slow, when a program stops responding, or when the operating system asks you to restart after an update. Some people reboot once a week as routine maintenance; others go months without rebooting. If your computer is working well, you do not need to reboot.
Is it bad to reboot too often?
No. Rebooting regularly does not harm your computer. In fact, rebooting clears memory and can improve performance. The only downside is the time it takes — two to five minutes — so there is no reason to reboot if your computer is running well.
What is the difference between restart and shutdown?
A restart (reboot) shuts down and then automatically starts the computer again. A shutdown turns the computer off completely and does not restart it. Use restart when you want the computer to come back on right away. Use shutdown when you are done for the day or want to leave the computer off.
Can I reboot while programs are open?
Yes. When you reboot, Windows or macOS will close all open programs. If you have unsaved work, the system will ask you to save it before closing. It is better to save your work first, but the reboot will not proceed until you respond to any save prompts.