Does a Factory Reset Delete Everything? What Gets Erased and What Remains
Quick Answer
A full factory reset usually removes personal files, downloaded apps, local accounts, and custom settings from a device. It does not delete your online accounts, cloud backups, or every connected storage device.
Whether deleted information can be recovered depends on the hardware, encryption, and erase option you choose.
Selling an old phone or recycling office computers? The reset process matters. A modern encrypted phone and an older computer hard drive can need different handling.
This guide explains what gets erased, what remains, and what to do before your electronics leave your control.
What Is a Factory Reset?
How a Factory Reset Works
A factory reset removes user information and restores default settings. On a phone, a full reset generally erases the internal user-data area. On a computer, it may reinstall the operating system and offer a choice about keeping personal files.
Restarting a device is different. A restart normally keeps your files, apps, and settings. Resetting only network settings also leaves personal content in place.
What Returning a Device to Factory Settings Means
After a full reset, the device generally returns to its setup screen. A new user can then configure it.
This does not necessarily restore the software version it originally shipped with. Updates may remain installed, and some recovery procedures install a newer operating system.
What Does a Factory Reset Delete?
Check your reset option first. The following describes a completed full data erase. A settings-only reset or Windows “Keep my files” has a different scope.
Personal Files Stored in Internal Memory
A full erase normally removes locally stored photos, videos, downloads, music, and documents. Files saved only on the device may be lost permanently.
Before resetting, open your backup and confirm that the files you want to keep are accessible.
Downloaded Apps and Locally Stored App Data
Downloaded apps and their local data are generally removed. This can include offline downloads, app preferences, and game progress that was never synced.
Information saved to an online account may return after you sign in. Restoring an online copy is different from recovering erased internal storage.
Locally Stored Messages and Call History
Messages and call logs held on the device are normally erased. Copies in backups, messaging services, or another person’s account are outside the reset’s scope.
Accounts and Credentials Stored on the Device
A complete erase removes local user profiles and saved sign-in information within its scope. Your Google, Apple, Microsoft, email, and social media accounts still exist online.
Custom Settings and Preferences
Wallpapers, ringtones, Wi-Fi preferences, app permissions, and display settings generally return to defaults. Restoring a backup may bring some preferences back.
What Does a Factory Reset Not Delete?
The Operating System and System Firmware
A standard reset normally leaves a working operating system or reinstalls one. System firmware is generally retained, although recovery methods vary.
Preinstalled Factory Apps
Built-in apps commonly remain or are restored during setup. The exact app list depends on the manufacturer, operating system, and recovery option.
Cloud Backups and Synced Online Data
Erasing a device generally does not erase separate content held in your cloud account. Apple explains that erasing an iPhone does not delete its content from iCloud.
Follow
Apple’s preparation instructions before transferring an iPhone
.
Protect your cloud copies. Manually deleting synced photos may also delete their online copies. Verify your backup and follow the manufacturer’s transfer procedure.
Data on SD Cards and Physical SIM Cards
Do not assume an internal reset erases memory cards, USB drives, or other disks. Remove storage you are keeping and sanitize anything you are transferring.
Physical SIM cards and eSIM profiles need separate handling. Follow your carrier’s instructions when transferring service.
Can Personal Data Be Recovered After a Factory Reset?
Data Recovery Risks on Older or Unencrypted Devices
Sometimes. Ordinary deletion, quick formatting, or an incomplete erase may leave readable information on older or unencrypted storage.
This remaining information is often described as
data remanence.
A welcome screen alone does not prove that a drive has been sanitized.
How Encryption Affects Data Recovery
When a supported erase process securely removes the keys needed to read encrypted data, leftover storage blocks cannot be read through ordinary file-recovery tools.
Apple describes this approach in its
device-erasure documentation.
Many modern Android phones also use encrypted storage, but the model and reset implementation matter.
Turning on encryption immediately before disposal does not, by itself, prove that every historical copy is protected. For business equipment with an uncertain history, use a documented sanitization process.
Why Reset Methods and Device Models Matter
A settings reset, quick format, operating-system reinstall, and full erase are different operations. Confirm which storage areas the selected procedure covers.
If erasure fails, keep the device under your control until the remaining data has been handled.
How Do Phones, Computers, HDDs, and SSDs Differ?
Phones and Tablets With Encrypted Storage
Modern phones often use integrated encrypted flash storage. Follow the manufacturer’s complete erase procedure, address account locks, and check that the reset finishes.
Removing apps or resetting network settings does not replace a full data erase.
Computers With Hard Disk Drives
Magnetic hard disk drives can retain readable information after ordinary deletion or a quick format.
A suitable full-drive overwrite can be an appropriate clearing method for a functioning HDD, depending on the data and disposal requirements. Failed or inaccessible drives need another plan.
Computers With Solid-State Drives
SSDs manage flash memory differently from HDDs. Repeated overwriting or wiping free space may miss storage areas managed by the drive controller.
Use a supported sanitization or cryptographic-erase method suitable for the drive.
The
University of Hawaiʻi’s media-disposal guidance
distinguishes HDD wiping from flash-storage handling and warns against using DBAN on SSDs. Its NIST reference is older, so consult the current publication linked below for program guidance.
Does a Factory Reset Permanently Delete Your Accounts?
Removing Accounts From a Device Versus Deleting Online Accounts
Removing a local account does not close the online account, cancel subscriptions, or delete content held by the service. You can usually continue using it on another device.
Review trusted devices and account sessions when transferring ownership.
Activation Lock and Factory Reset Protection
Apple Activation Lock and Android Factory Reset Protection help prevent unauthorized reuse. Depending on how the reset is performed, the device may still require the previous owner’s credentials.
Follow the owner’s official sign-out and transfer procedure. An ownership lock does not replace data erasure, and erasing data does not always release the lock.
What Should You Do Before a Factory Reset?
Back Up Important Files and App Data
Save important files and test your backup. Check apps that require their own export or backup process.
Transfer authentication apps and recovery information before losing access to the old device.
Sign Out and Follow Manufacturer Account Removal Instructions
Complete the manufacturer’s ownership-transfer steps. For employer-managed equipment, involve your IT team so device management and asset records are handled correctly.
Remove SD Cards and Physical SIM Cards
Check card slots and USB ports. Remove cards and external storage you are keeping. Include any storage being transferred in your sanitization plan.
Transfer or remove eSIM profiles according to the manufacturer and carrier instructions.
Follow the Manufacturer’s Instructions for Erasing Your Device
Choose the complete erase option for your model. Keep the device powered during the process and allow it to finish.
If someone else will receive the device, leave it at the welcome screen after erasure is complete.
What Should You Do Before Recycling a Device?
Before arranging
electronics recycling in Phoenix,
work through this checklist.
Before You Hand Over Your Device
- Verify your backup: Open the files you need to keep.
- Identify all storage: Include secondary drives and memory cards.
- Complete the erase: Use the correct procedure and check for errors.
- Remove personal items: Keep cards and accessories you are not transferring.
- Flag failed devices: Tell the recycler about equipment that could not be erased.
- Confirm documentation: Agree on data handling before collection.
Electronics recycling does not automatically include data destruction. Confirm whether your agreement covers both.
During an office cleanout, coordinate
excess inventory management
with your data-disposal plan so equipment is not released too early.
When Should Businesses Consider Professional Data Destruction?
Consider professional assistance when equipment contains sensitive records, storage has failed, erasure cannot be verified, or the volume exceeds what your team can reliably process.
Your retention policies and contractual requirements also affect how devices should be handled.
Verified Sanitization and Physical Destruction
A functioning drive may be suitable for sanitization and reuse. Damaged storage or a higher-security disposal policy may call for physical destruction.
Match the method to the media. A process intended for magnetic disks may not work for flash chips.
Chain of Custody and Destruction Records
Ask for asset identifiers, custody records, the method used, verification results, exceptions, and final disposition.
A certificate should describe what happened to the listed assets. It does not independently prove that every method was appropriate.
Current NIST Media Sanitization Guidance
NIST SP 800-88 Revision 2: Guidelines for Media Sanitization
provides a framework for a sanitization program based on information sensitivity and applicable controls.
Published in September 2025, it supersedes Revision 1. Use it to inform a documented process rather than relying only on a generic “secure wipe” claim.
Factory Reset and Secure Recycling FAQs
Select a question below to read the answer.
What does a factory reset delete?
A full erase normally removes personal files, downloaded apps, local app data, user profiles, and custom settings within its scope. Cloud backups, online accounts, and removable media require separate checks.
Can data remain recoverable afterwards?
Yes, especially after incomplete erasure on older or unencrypted storage. A supported cryptographic erase can make encrypted data inaccessible by removing the required keys. The result depends on the hardware and method.
How do phones, computers, HDDs, and SSDs differ?
Phones commonly use integrated encrypted flash storage. Computers may have multiple drives. HDDs can support full-drive overwriting, while SSDs need methods that account for their flash-controller behavior.
What should you do before recycling a device?
Verify your backup, follow account-transfer instructions, erase the device, and remove cards you are keeping. If erasure fails, arrange controlled data handling before handing it over.
When should businesses consider professional data destruction?
When sensitive information, failed storage, device volumes, or documentation requirements make an informal reset process inadequate. Agree on custody, sanitization, verification, and exception handling with the provider.
Can someone retrieve my data after I wipe my phone with a factory reset?
Ordinary recovery software generally cannot retrieve local files from a correctly erased modern encrypted phone when the required encryption keys have been securely removed.
Older phones, failed resets, and removable cards can present different risks. Online backups remain separate copies.
Does a factory reset completely wipe all data from a mobile phone, or can recovery software still recover files?
A full reset removes local user data, but it does not necessarily overwrite every memory cell. On supported encrypted devices, securely removing encryption keys protects the remaining data.
Be cautious of recovery promises that do not identify the phone model and reset method. Restoring a backup is different from recovering erased internal storage.
Does a factory reset delete files in Pixel’s Safe folder as well?
Yes. If you mean Safe folder in Files by Google, a full Pixel factory reset erases the phone’s internal user data, including those local files. This follows from Google’s descriptions of internal-storage erasure and Safe folder storage.
Move out and separately back up anything you want to keep. Safe folder does not provide direct Google Drive backup from inside the folder.
See
Google’s Pixel reset instructions
and
Safe folder guidance.
Does a factory reset delete everything on iPhone, Android, PC, Mac, PS4, and Xbox?
- iPhone: Use Erase All Content and Settings. Resetting settings alone does not erase personal content. Follow Apple’s transfer steps and handle the eSIM if applicable.
- Android: Use the manufacturer’s full factory data reset. Check account protection and removable storage separately.
- Windows PC: “Keep my files” preserves personal files. “Remove everything” removes them. Microsoft recommends “Clean data” for consumer sale or recycling, but states that it does not meet government and industry data-erasure standards.
Read Microsoft’s reset guidance. - Mac: Supported models offer Erase All Content and Settings. Older Macs require a different procedure.
Follow Apple’s Mac erase instructions. - PS4: Sony recommends Settings > Initialization > Initialize PS4 > Full before transfer or disposal. Restore Default Settings does not erase user or game data.
See Sony’s disposal guide. - Xbox: A reset that keeps games and apps has a different scope from complete removal. For a console being transferred, follow the complete-removal procedure in
Microsoft’s Xbox reset guide.
Check external storage separately.
Helpful Data Security Resources
NIST: Guidelines for Media Sanitization
provides government guidance for establishing a sanitization program.
University of Hawaiʻi: Disposal of Media Containing Protected Data
explains storage-disposal considerations. Its NIST reference is older, so consult the current publication above.
Wikipedia: Data Remanence
provides background on information that can remain after deletion.
Ready to Recycle Your Electronics in Phoenix?
Before old devices leave your hands, make a plan for the data inside.
JHI eScrap offers
IT asset disposition services
that include data sanitization and destruction.
Explore our
surplus electronics services
for reusable equipment, or discuss a retirement plan for devices that have reached the end of their useful life.
Share your equipment list, storage types, and data-handling requirements. Ask which method fits your devices and what documentation is available.
