What resetting your computer means and when to do it

A reset clears your operating system back to factory settings, removing all your files, programs, and personal configurations. It is not the same as restarting — restarting shuts down and turns the machine back on, while a reset wipes the drive and reinstalls the OS from scratch. You should reset when malware has taken hold, when the system has become too slow or unstable to repair through normal troubleshooting, or when you are selling or giving away the computer and want to erase your data.

Before you reset, back up anything you want to keep. Once the process starts, recovery is difficult and expensive. A reset takes between 30 minutes and two hours depending on your hardware and internet speed, and you will need to reinstall your programs and sign back into your accounts afterward.

Key Takeaways

  • Windows 10 and 11 have a built-in reset tool in Settings under System > Recovery that does not require a separate disc or USB drive.
  • Mac users can erase and reinstall macOS through System Settings > General > Transfer or Reset, or by using Recovery Mode if the normal route fails.
  • Linux distributions vary widely, but most users reinstall by booting from a USB drive with the OS image and choosing the wipe-and-install option during setup.
  • Back up your files before starting any reset, because the process removes everything on the drive.
  • After a reset completes, you will need to reinstall programs, sign into accounts, and restore files from your backup.

Resetting Windows 10 or Windows 11

Open Settings by pressing the Windows key and typing "Settings", then select the Settings app. Go to System in the left sidebar, then scroll down and click Recovery. Under "Reset this PC", click the Reset PC button.

Windows will ask whether you want to keep your files or remove everything. Choose Remove everything if you are trying to fix malware or performance problems, or if you are giving away the computer. Choose Keep my files only if you want to preserve your documents, photos, and downloads while removing programs and settings — this is less thorough and may not solve serious problems.

Next, Windows asks whether to reinstall from the cloud or from local files. Cloud reinstall downloads a fresh copy of Windows from Microsoft's servers and takes longer but is more reliable if your current installation is corrupted. Local reinstall uses files already on your drive and is faster, but may fail if those files are damaged. If you are unsure, choose cloud reinstall.

The process will restart your computer multiple times and take 45 minutes to two hours. Do not turn off the computer during this time. When it finishes, you will see the Windows setup screen where you sign in with your Microsoft account and configure your preferences.

Resetting a Mac

On macOS Monterey and newer, open System Settings (not System Preferences) and click General in the sidebar. Scroll down to find Transfer or Reset, then click Erase All Content and Settings. macOS will ask for your password and a confirmation, then begin the process.

If you are running an older version of macOS or the normal reset fails, use Recovery Mode instead. Shut down your Mac completely. If you have an Apple Silicon Mac (M1, M2, or newer), press and hold the power button until you see "Loading startup options", then select the Options button. If you have an Intel Mac, restart and when ready press and hold Command + R until the Apple logo appears. Either way, you will see the macOS Utilities window.

From Utilities, click Disk Utility, select your main drive in the left sidebar, and click Erase. Choose a name for the drive, set the format to APFS (or Mac OS Extended on older Macs), and confirm. Once erasing finishes, close Disk Utility and select Reinstall macOS from the Utilities window. Follow the prompts to read and install a fresh copy of the operating system.

Resetting Linux

Linux reset methods depend on which distribution you use. Ubuntu, Fedora, Linux Mint, and others do not have a built-in reset tool like Windows or Mac. Instead, you reinstall the operating system from scratch using a bootable USB drive.

read the ISO file for your distribution from its official website — for Ubuntu, that is ubuntu.com; for Fedora, fedoraproject.org; for Linux Mint, linuxmint.com. Use a tool like Balena Etcher (balena.io/etcher) or Rufus (rufus.ie) to write the ISO to a USB drive on another computer. Insert the USB into the computer you want to reset, restart, and press the key that opens the boot menu — usually F12, Esc, or Del, depending on your hardware. Select the USB drive from the menu.

The installer will boot and offer you a choice to try the OS or install it. Choose Install. When asked about the installation type, select Erase disk and install to wipe the drive completely. The installer will then partition the drive, format it, and copy the OS files. This takes 20 to 40 minutes. When finished, remove the USB and restart into your fresh Linux installation.

What to do before you reset

Back up your files to an external drive, cloud storage, or both. Copy your Documents, Downloads, Pictures, Desktop, and any other folders that hold work you want to keep. If you use cloud services like Google Drive, OneDrive, or iCloud, sign in and read anything stored only in the cloud.

Write down the names and passwords of programs you use regularly, or store them in a password manager. You will need to reinstall these programs after the reset, and some may require license keys or login credentials. Take a screenshot of your desktop and any custom settings you have made, so you can recreate them later if needed.

If you have a Microsoft, Apple, or Google account linked to your computer, make sure you know the password. You will need it to sign back in after the reset. If you have a local account with no linked email, consider creating a Microsoft or Apple account first — it makes the reset and sign-in process smoother.

After the reset is complete

Your computer will restart and show the initial setup screen, as if it were brand new. Sign in with your account, choose your language and keyboard layout, and configure basic settings. This takes 10 to 20 minutes.

Once you reach the desktop, reconnect to your Wi-Fi network and sign into your email, cloud storage, and other accounts. Restore your files from your backup by copying them back to their original locations. Reinstall your programs by downloading them from their official websites or app stores — do not rely on old installation files, as they may be outdated or corrupted.

Update your operating system and all installed programs to the latest versions. On Windows, go to Settings > Update & Security > Check for updates. On Mac, go to System Settings > General > Software Update. On Linux, open your package manager and check for updates. This ensures you have the latest security patches and bug fixes.

Troubleshooting a reset that fails or gets stuck

If the reset starts but hangs on a particular screen, wait at least 30 minutes before assuming it is stuck — some steps take longer than expected. If nothing changes after an hour, force shut down by holding the power button for 10 seconds, then try again.

If the reset fails with an error message, note the exact error code and search for it on the manufacturer's support site. Windows errors often have a code like 0x80070005 or 0xC1900101; Mac errors may mention a specific component; Linux installers usually show a log file with details. These codes point to the specific problem — often a bad USB drive, corrupted installation files, or a failing hard drive.

If you cannot reset through the normal method, try the alternative route: Windows users can create a bootable USB with the Windows Media Creation Tool and reinstall from there. Mac users can use Recovery Mode as described above. Linux users should verify the ISO file's checksum before writing it to USB, as a corrupted read is a common cause of installer failures.

Frequently Asked Questions

Will a reset remove viruses and malware?

Yes, a full reset that removes everything will erase malware along with your files. However, if malware has infected your backup drive or cloud storage, you can reinfect yourself when you restore files. Scan your backup on a different computer before restoring, or restore only specific files rather than everything at once.

Can I reset my computer without losing my files?

Windows offers a "Keep my files" option that preserves documents and photos while removing programs and settings. Mac and Linux do not have this built-in, though you can manually back up and restore files. Keep in mind that keeping files may not fully solve performance or malware problems, since corrupted settings can remain.

How long does a reset take?

A typical reset takes 45 minutes to two hours depending on your internet speed, drive size, and hardware. Cloud-based reinstalls take longer than local ones. Do not interrupt the process or turn off the computer, as this can leave the system unbootable.

Do I need a product key or license to reset Windows?

No. If your copy of Windows is already licensed to your device, Windows will reactivate automatically after the reset when you sign in with your Microsoft account. If you have a standalone license key, you can enter it during setup if needed, but it is not required.

What if I forgot my password before resetting?

On Windows, you can reset your password from the login screen by clicking "I forgot my password" and following the recovery steps. On Mac, you can use Recovery Mode to reset your password through the Utilities menu. On Linux, you can boot into single-user mode or use a live USB to reset the password. If none of these work, a full reset will erase the password requirement, and you can create a new account during setup.