What updating your computer means and why it matters

Updating your computer means installing the latest software patches, security fixes, and feature improvements that the manufacturer releases. These updates fix vulnerabilities that hackers exploit, patch bugs that slow your machine down, and add features that improve how your system works. Most updates happen in the background if you let them, but you can also check for and install them manually.

The process differs depending on whether you run Windows, macOS, or Linux. Each system has its own update mechanism, and each one can be set to update automatically or on your schedule. Knowing how to find and run updates yourself is useful when automatic updates are turned off, when you want to control the timing, or when an update fails to install.

Key Takeaways

  • Windows updates are found in Settings > Update & Security > Windows Update, where you can check for updates now or schedule them for a specific time.
  • macOS updates appear in System Settings > General > Software Update, and your Mac will prompt you when updates are ready to install.
  • Linux updates vary by distribution, but Ubuntu users run sudo apt update and sudo apt upgrade in the terminal to check and install updates.
  • Restart your computer after updates finish installing so the changes take effect fully.
  • Automatic updates can be turned on in all three systems so you do not have to check manually each time.

How to update Windows 10 and Windows 11

Open Settings by pressing the Windows key and typing "Settings", then click the Settings app. Once it opens, click Update & Security on the left side (in Windows 11, this is called System > About with an Update button visible). Click Check for updates. Windows will search for any available patches and security fixes.

If updates are found, Windows will show you a list and ask permission to read and install them. Click Install now or read and install. The read may take several minutes depending on your internet speed and the size of the update. Once the read finishes, Windows will ask you to restart your computer. You can restart when ready or choose a time that works for you by clicking Schedule the restart.

If you want Windows to update automatically without asking, stay in the Update & Security screen and look for Change active hours. Set the hours when you normally use your computer, and Windows will install updates outside those hours and restart only when necessary. This way you will not be interrupted during work.

How to update macOS on an Apple computer

Click the Apple menu in the top-left corner of your screen and select System Settings (or System Preferences on older Macs). Click General in the left sidebar, then click Software Update. Your Mac will check for available updates and show you what is ready to install.

If updates are available, click Update Now or Upgrade Now depending on what your Mac displays. macOS will read the update in the background. For major version upgrades (like jumping from macOS 12 to macOS 13), your Mac may ask you to restart before installation begins. For smaller security patches, the installation often happens without interrupting your work, though a restart may be needed afterward.

To turn on automatic updates, stay in System Settings > General > Software Update and toggle on Automatic Updates. Your Mac will then read and install updates overnight or when you are not using it, and will restart only when necessary. You can also choose to install only security updates automatically while waiting to manually install major version upgrades.

How to update Linux (Ubuntu and other distributions)

Linux updates work differently depending on which distribution you use. Ubuntu, the most common distribution for personal computers, uses the terminal to check for and install updates. Open the terminal by pressing Ctrl+Alt+T or by searching for "Terminal" in your applications menu.

Type the following command and press Enter: sudo apt update. This checks for available updates but does not install them yet. Your computer will ask for your password; type it and press Enter. Once that finishes, type sudo apt upgrade and press Enter. This downloads and installs all available updates. The process may take several minutes. When it finishes, restart your computer by typing sudo reboot and pressing Enter.

If you prefer not to use the terminal, Ubuntu also includes a graphical update manager. Click the Activities button in the top-left, search for "Software Updater", and open it. The updater will check for new packages and show you a button to install them. This method is slower than the terminal but does not require typing commands.

What to do if an update fails or gets stuck

If an update starts but does not finish, or if your computer freezes during installation, restart it by holding the power button for ten seconds until it shuts down completely. Wait thirty seconds, then turn it back on. Your computer will usually resume the update process or roll back to the previous version if something went wrong.

If the same update fails twice, restart your computer in Safe Mode (on Windows, restart and press F8 repeatedly during startup; on Mac, restart and hold Shift; on Linux, this varies by distribution). Safe Mode loads only essential software, which sometimes allows a stuck update to complete. If the update still fails, search online for the specific error code your computer displays — this code often points to the exact problem and how to fix it.

On Windows, you can also use the Troubleshoot tool. Open Settings > Update & Security > Troubleshoot > Additional troubleshooters > Windows Update. Click Run the troubleshooter and let it scan for problems. It will often find and fix issues that prevent updates from installing.

How to schedule updates so they do not interrupt your work

All three operating systems let you control when updates install. On Windows, set Active Hours in Settings > Update & Security > Change active hours. Tell Windows when you use your computer most, and it will install updates outside those times. You can set different hours for weekdays and weekends.

On macOS, open System Settings > General > Software Update and click Automatic Updates. Toggle on the options you want: "Install system data and security updates" runs automatically, while "Install app updates from the App Store" and "Install macOS updates" can be toggled separately. You can also click Details to see exactly what will update and when.

On Ubuntu, updates can be scheduled through the Software Updater settings, though most users prefer to run updates manually at a convenient time using the terminal commands listed above. If you want automatic updates on Ubuntu, you can install and configure the unattended-upgrades package, but this requires terminal knowledge.

Checking what updates your computer has already installed

On Windows, open Settings > Update & Security > Update history. This shows every update your computer has installed, the date it installed, and whether it succeeded. If you see a failed update, you can click it for details about why it failed.

On macOS, click the Apple menu > System Settings > General > About > System Report. Click Software in the left sidebar. Scroll down to find Installed Software or Extensions to see what has been installed. For a simpler view, open the App Store app, click your profile picture in the top-right, and select Purchase History to see app updates.

On Ubuntu, open the terminal and type apt list --installed to see all installed packages and their versions. To see only recent updates, type grep "^Unpacking\|^Setting up" /var/log/apt/history.log | tail -20. This shows the last twenty packages that were installed or updated.

Frequently Asked Questions

Do I have to restart my computer after every update?

Not always. Security patches and minor updates often install without requiring a restart. However, updates that change core system files or drivers usually need a restart to take effect. Your computer will tell you if a restart is required. It is safe to delay the restart for a few hours, but do not skip it — the update will not work fully until you restart.

What happens if I turn off my computer during an update?

Turning off your computer during an update can corrupt system files and make your computer unstable or unable to start. If this happens, restart your computer and let it attempt to repair itself, which it usually does automatically. If your computer will not start, you may need to reinstall the operating system from a recovery drive.

Can I update my computer without an internet connection?

No. Updates must be downloaded from the manufacturer's servers, so you need an active internet connection. If your internet is slow, updates will take longer but will still work. If your connection drops during an update, your computer will resume the read when you reconnect.

Why does my computer keep asking me to restart after an update?

This usually means the update installed but your computer has not restarted yet, so the changes have not taken effect. Restart your computer as soon as you can save your work. If the restart prompt keeps returning after you restart, the update may have failed — check your update history and try installing the update again.

Is it safe to update my computer while I am working on files?

It is safe to let updates read in the background while you work, but you should save all open files before the restart begins. Updates can take ten minutes to an hour depending on size. Schedule updates for times when you do not need your computer, or use the active hours feature to prevent restarts during your work time.