What a complete reset does and when you need one

A complete reset wipes your laptop back to the state it left the factory — all your files, programs, and settings disappear, and the operating system reinstalls itself fresh. This is different from a restart (which just reboots) or a shutdown (which just turns it off). A reset is the nuclear option: use it when your laptop is so slow or broken that normal fixes don't work, when you're selling or giving it away, or when malware has dug in deep enough that you don't trust the system anymore.

The reset process takes 30 minutes to two hours depending on your internet speed and laptop age. During that time your laptop will restart several times on its own — this is normal and you should not interrupt it. After it finishes, you'll log in with your Microsoft account (Windows) or Apple ID (Mac) and the laptop will read your settings and apps from the cloud if you want it to.

Before you reset, back up anything you want to keep. A reset deletes everything on the drive, and there is no undo. If you have photos, documents, or files you care about, copy them to an external drive or cloud storage first.

Key Takeaways

  • A complete reset erases everything on your laptop and reinstalls the operating system, so back up your files before you start.
  • Windows laptops reset through Settings > System > Recovery, while Mac laptops reset through System Settings > General > Transfer or Reset.
  • The reset process takes 30 minutes to two hours and your laptop will restart multiple times — do not interrupt it.
  • After the reset finishes, you log in with your Microsoft account or Apple ID and the laptop downloads your settings from the cloud.
  • If your laptop won't start at all, you may need to use a recovery drive or installation media instead of the built-in reset option.

How to reset a Windows laptop

Open Settings by pressing the Windows key and typing "Settings", then press Enter. Click System in the left sidebar, then scroll down and click Recovery. You'll see a button that says "Reset this PC" — click it.

Windows will ask whether you want to keep your files or remove everything. Choose "Remove everything" for a complete reset. Then it will ask whether you want to reinstall Windows from the cloud or from local files. Cloud reinstall is slower but more reliable if your laptop has been corrupted — local reinstall is faster if you're just cleaning up. For most people, cloud reinstall is the safer choice.

Click Next and Windows will show you a summary of what it's about to do. Click Reset and the process begins. Your laptop will restart, show a progress screen, and restart again several times. This is normal. Do not turn off your laptop or unplug it during this time. When it finishes, you'll see the Windows login screen.

How to reset a Mac laptop

Click the Apple menu in the top left corner and select System Settings. Click General in the left sidebar, then scroll down and click Transfer or Reset. You'll see several reset options — click Erase All Content and Settings.

macOS will warn you that this will erase everything and ask for your Apple ID password. Enter it and click Continue. Your Mac will restart and begin the erase process. You'll see a progress bar. This takes 10 to 30 minutes depending on how much data is on your drive. Do not interrupt it or close the lid.

When the erase finishes, your Mac will restart and show the setup screen you saw when it was brand new. You can log in with your Apple ID and choose whether to restore your apps and settings from a Time Machine backup or set up as a new Mac.

Backing up your files before you reset

The safest backup method is an external hard drive. Plug it into your laptop, copy your Documents, Pictures, Desktop, and Downloads folders to the drive, and wait for the copy to finish. This takes 10 minutes to an hour depending on how much data you have. Do not unplug the drive until the copy is done.

If you don't have an external drive, use cloud storage instead. Upload your important files to Google Drive, OneDrive, iCloud, or Dropbox. This is slower than a drive (it depends on your internet speed) but it works from anywhere. Most of these services offer free storage for a few gigabytes, which is enough for documents and photos.

After you've backed up, double-check that the files are actually on the backup drive or in the cloud. Open the external drive or log into your cloud account and make sure you see your files there. This takes two minutes and saves you from losing everything.

What to do if your laptop won't start

If your laptop won't turn on or gets stuck on a black screen, you can't use the built-in reset option because you can't reach Settings. Instead, you need a recovery drive or installation media.

For Windows, you can create a recovery drive on another computer by going to Settings > System > Recovery > Create a recovery drive. Plug in a USB drive (8 GB or larger), follow the steps, and Windows will copy recovery files to it. Then plug that USB drive into your broken laptop, restart it, and press F12 or Delete during startup to boot from the USB drive. Follow the on-screen steps to reset Windows.

For Mac, restart your laptop and hold Command + R when ready after you hear the startup sound. This boots into Recovery Mode. Click Utilities in the menu bar, then Terminal, and type csrutil disable and press Enter. Restart again, then go to System Settings > General > Transfer or Reset and choose Erase All Content and Settings. After it finishes, restart and hold Command + R again, open Terminal, type csrutil enable, and press Enter.

After the reset: what to expect

When your laptop finishes resetting, it will ask you to log in. Use your Microsoft account (Windows) or Apple ID (Mac) — the same one you used before. Your laptop will then read your settings, preferences, and app list from the cloud. This takes 10 to 30 minutes depending on your internet speed.

You'll need to reinstall programs that weren't built into the operating system. Microsoft Office, Chrome, Zoom, Slack, and other third-party apps won't be there automatically. Go to the Microsoft Store (Windows) or App Store (Mac) and search for each program you need, then install it. Your documents and photos will be there if you backed them up, but you'll need to copy them back from your external drive or read them from cloud storage.

Your laptop should run noticeably faster after a reset because there's no accumulated junk, temporary files, or background programs slowing it down. If it's still slow after a week, the problem might be hardware (a failing drive or not enough RAM) rather than software.

Frequently Asked Questions

Will a reset remove viruses and malware?

Yes. A complete reset erases everything on the drive and reinstalls the operating system, so any malware goes with it. This is one of the most reliable ways to clean a heavily infected laptop. After the reset, install antivirus software and keep Windows or macOS updates turned on to prevent reinfection.

Can I cancel a reset once it starts?

You can cancel it in the first few seconds before the restart, but once your laptop restarts and the progress bar appears, you should not interrupt it. Stopping it mid-process can leave your laptop in an unusable state. If you need to cancel, do it before the first restart.

What if I forgot my Microsoft account password?

You can reset your password at account.microsoft.com before you start the laptop reset. If you're already in the reset process and stuck at the login screen, go to the Microsoft account recovery page from another device, reset your password, and use the new password on your laptop.

Do I need internet during the reset?

Yes, especially for a cloud-based Windows reset. Your laptop needs to read the operating system files, which can be 3 to 5 GB. Use a wired connection (Ethernet) if possible because it's more stable than Wi-Fi. If you only have Wi-Fi, make sure you're close to the router and the signal is strong.

Will the reset remove the Windows or macOS license?

No. Windows and macOS licenses are tied to your Microsoft account or Apple ID, not to the laptop itself. After you log in with your account, the operating system will automatically set up. You don't need to buy a new license.