What "default reset" means and when you might need one

A default reset (or factory reset) returns a device, account, or software program to the condition it came in — erasing your personal settings, files, and customizations, then reinstalling the original configuration. This is different from restarting, which straightforward turns something off and back on without erasing anything.

You might reset to fix a device that is frozen or crashing, remove malware or unwanted software, prepare a device to sell or give away, or start over after making changes you cannot undo through normal settings. A reset is a last resort when other troubleshooting steps have not worked.

The cost of a reset is high: you lose everything stored locally on that device or account unless you backed it up first. That is why understanding what you are about to erase, and how to recover your data afterward, matters before you begin.

Key Takeaways

  • A default reset erases all personal data and settings on a device or account and returns it to factory condition — this action is usually permanent.
  • Back up your files, photos, passwords, and account information before resetting anything, because the reset process will delete them from the device.
  • The steps to reset differ by device type (phone, computer, tablet) and operating system (Windows, Mac, iOS, Android), so look up the exact instructions for your specific device.
  • After a reset, you will need to sign back into accounts, reinstall software, and restore files from your backup — this process can take several hours.

Back up your data before you reset anything

Backing up means making a copy of your files, photos, emails, and settings on a separate device or cloud storage service. If you reset without backing up first, those files are gone — not moved to a folder you can recover, but permanently deleted from that device.

For phones and tablets, use the built-in backup service: iCloud for Apple devices, Google Drive for Android devices. For computers, use an external hard drive, cloud storage (OneDrive, Google Drive, Dropbox), or your operating system's built-in backup tool (Time Machine on Mac, File History on Windows). Back up your passwords separately using a password manager like Bitwarden or 1Password, because resetting will erase those too.

Test your backup by restoring a single file or folder to a different location — this confirms the backup actually worked before you erase the original device. Many people discover their backup failed only after they have already reset.

How to reset a smartphone or tablet

The process differs between iPhone and Android, but both are found in Settings.

On an iPhone: Open Settings, tap General, scroll to the bottom and tap Transfer or Reset, then tap Erase All Content and Settings. You will be asked to enter your Apple ID password and confirm. The device will erase and restart, which takes 10 to 30 minutes. You will then see the setup screen as if the phone were brand new.

On an Android phone: Open Settings, search for "reset" or "factory reset", tap System or About Phone (depending on your manufacturer), then tap Reset Options or Factory Reset. You may be asked to enter your Google account password. The device will erase and restart. The exact menu path varies by manufacturer — Samsung, Google Pixel, and others place this option in slightly different locations, so search your device model name plus "factory reset" if you cannot find it.

Before you reset, sign out of your Google or Apple account on the device, because some phones will lock after reset and require you to sign back in with that account to prove ownership. If you forget the password, you may be locked out of your own device.

How to reset a Windows or Mac computer

On Windows 10 or 11: Open Settings, go to System, then click Recovery. Under Reset this PC, click get your free guide. Choose whether to keep your files (which keeps your personal documents but removes programs and settings) or remove everything (which erases everything). Windows will ask you to insert installation media or read Windows from the internet. The process takes 30 minutes to an hour. After reset, you will need to sign in with your Microsoft account and reinstall your programs.

On a Mac: The process depends on whether your Mac has an Apple Silicon chip (M1, M2, M3) or an Intel processor. For Apple Silicon Macs, restart the computer and hold the power button until Startup Options appears, then choose Options, then Utilities, then Disk Utility. Erase the main drive, then reinstall macOS. For Intel Macs, restart and hold Command-R to enter Recovery Mode, then use Disk Utility to erase the drive and reinstall macOS. Both processes take 45 minutes to over an hour.

On either system, you will lose all installed programs — you will need to read and reinstall them from their original sources or app stores after the reset is complete.

What happens when ready after you reset

After a reset finishes, the device or account will look exactly as it did when it was brand new. You will see the initial setup screen, which asks you to choose a language, connect to Wi-Fi, and create or sign into an account. This is normal.

Do not skip the setup steps — they configure basic functions like location services, backups, and security. After setup is complete, you can restore your backed-up files and settings. For phones, this usually happens automatically when you sign into your cloud account. For computers, you will manually restore files from your backup drive or cloud storage.

Reinstalling all your programs and restoring all your files can take several hours, depending on how much data you have and your internet speed. Plan for this time and do not interrupt the process.

When a reset does not fix the problem

If your device is still frozen, crashing, or showing errors after a reset, the problem may be hardware damage rather than software. A hard drive failure, water damage, or a failing battery will not be fixed by erasing and reinstalling — you will need to take the device to a repair technician.

If you reset because of malware and the device is still behaving strangely, the malware may have infected your backup files as well. In that case, restore only your documents and photos, not your programs or settings, and read fresh copies of your programs from official sources.

If you reset a phone and it is still locked after setup, you may have forgotten your account password or the device may have an set up lock enabled. Contact Apple or Google support with proof of ownership — they can help you regain access, but the process can take days.

Alternatives to a full reset

Before you reset, try these simpler steps: restart the device (turn it off completely, wait 30 seconds, turn it back on), uninstall recently added programs or apps, clear the cache and temporary files, or run a malware scan with legitimate antivirus software.

For accounts (email, social media, banking), you may be able to change your password, review connected apps and remove ones you do not recognize, or enable two-factor authentication to find the account without erasing your data.

If the device is slow because the storage is full, delete old files, photos, and programs instead of resetting. If it is slow because of too many startup programs, disable those programs from running at startup instead of resetting.

Frequently Asked Questions

Can I undo a reset after I have started it?

Once a reset begins, you should not interrupt it — stopping it midway can leave the device in an unusable state. If you change your mind before clicking the final confirmation button, you can cancel. After confirmation, the process is permanent and cannot be undone unless you restore from a backup.

Will resetting remove viruses or malware?

A reset will remove most malware because it erases the entire operating system and reinstalls it fresh. However, some sophisticated malware can survive a reset by infecting the device's firmware. If you suspect serious malware, back up only your documents and photos (not programs or settings), reset, and restore only those files.

Do I need the original password to reset my device?

Most devices require you to enter your account password (Apple ID, Google account, Microsoft account) during or after reset to prove you own the device. If you do not remember the password, use the "Forgot Password" option on the account provider's website to reset it before you reset the device itself.

How long does a full reset take?

The erase and reinstall process itself takes 15 to 60 minutes depending on the device. Restoring your backed-up files and reinstalling programs can add several more hours. Plan for at least two to three hours total, and do not use the device while it is resetting.

What if I reset the wrong device by accident?

If you realize the mistake when ready, stop the reset if possible by forcing the device to shut down (hold the power button). If the reset has already completed, restore your backup to the device. If you do not have a backup, contact the device manufacturer's support team — they may be able to help recover data, though recovery is not may provide.