How to Factory Reset a MacBook in 2026 (Apple Silicon & Intel)

Whether you're selling your MacBook, passing it to a family member, or simply starting fresh after years of accumulated clutter, a factory reset is one of the most consequential things you can do to a Mac. Done right, it leaves behind a clean, factory-fresh system with none of your data. Done carelessly, you lose files you meant to keep. This guide walks you through the full process — from backing up and decluttering, through the correct reset method for your chip — so you can reset with confidence.

Apple Silicon vs. Intel: Which Reset Method Applies to You?

Apple introduced "Erase All Content and Settings" (System Settings → General → Transfer or Reset → Erase All Content and Settings) starting with macOS Monterey (12) on Apple Silicon Macs. This method is fast, firmware-aware, and the right choice for M1 and later machines. Intel Macs running Monterey or later can also use this option in most cases, but the experience is slightly different and some older Intel configurations must fall back to Recovery mode.

If you're unsure which chip your Mac has, choose → About This Mac. "Chip" shows M-series; "Processor" shows Intel.

Step 1 — Back Up Everything Worth Keeping

A reset is irreversible. Before you touch any setting, make at least one complete backup.

1. Time Machine. Connect an external drive, open System Settings → General → Time Machine, and add the disk. Let the first backup finish completely. You'll see "Backup Completed" with a timestamp.
2. iCloud Drive check. If you rely on iCloud, open System Settings → [your name] → iCloud and confirm Desktop & Documents Folders sync is on. Wait for any pending uploads (the status shows in Finder's sidebar under iCloud Drive).
3. Manual exports. Export passwords from Safari (File → Export → Passwords), export bookmarks, and note any app licenses stored locally (check ~/Library/Application Support/ for per-app data you can't re-download).
4. Non-Mac-App-Store apps. Many apps store their license key only in your email or a vendor dashboard — locate those keys now, not after the wipe.

Step 2 — Shrink Your Backup First (Optional but Worth It)

Backing up 200 GB of genuine data is unavoidable. Backing up 200 GB of caches, Xcode simulators, and duplicate photos from 2019 is wasteful and makes your Time Machine backup far larger than it needs to be.

Running Crumb before you back up takes five minutes and can cut your backup size meaningfully. Crumb's one-click Clean removes system caches, user caches, logs, and purgeable space — none of which you need to carry into a fresh system. Its Uninstall tab lets you remove apps along with every leftover file they scatter across ~/Library/, so those stragglers don't inflate the backup either.

If you're unsure whether a folder is safe to delete, Crumb's "Is this safe to delete?" AI explains what it is and the actual risk — useful before you start pruning manually. You can download Crumb and run the free cleanup pass without purchasing anything.

Things that are genuinely safe to clear before a backup:

• ~/Library/Caches/ — app caches rebuild on next launch
• /Library/Caches/ — system-level caches
• Xcode derived data at ~/Library/Developer/Xcode/DerivedData/
• Old iOS/tvOS simulators in ~/Library/Developer/CoreSimulator/
• Trash (empty it)

Things that are not safe to delete without checking:

• ~/Library/Application Support/ — contains app databases, save files, and plugin data
• ~/Documents/, ~/Desktop/, ~/Downloads/ — review manually
• Any folder you don't recognise — look it up before removing

Step 3 — Sign Out of Accounts and Deauthorise Apps

This step is especially important if you're handing the Mac to someone else.

1. Apple ID. System Settings → [your name] → Sign Out. You'll be asked whether to keep a copy of iCloud data on the Mac; choose Remove from Mac.
2. iMessage and FaceTime. Open Messages → Settings → iMessage → Sign Out. Open FaceTime → Settings → Sign Out.
3. iTunes / Music authorisation. Open Music → Account → Authorisations → Deauthorise This Computer. (Each Apple ID is limited to five authorised computers.)
4. Adobe Creative Cloud, Microsoft Office, and similar apps. Deactivate or sign out from within each app before resetting. Most vendors count active installations against a licence limit.
5. Activation Lock. After signing out of Apple ID, verify Activation Lock is cleared: go to iCloud.com → Find My → All Devices, select your Mac, and confirm it no longer appears there.

Step 4 — Perform the Reset

Erase All Content and Settings (macOS Monterey 12+ — Recommended)

1. Open System Settings → General → Transfer or Reset.
2. Click "Erase All Content and Settings…"
3. Enter your administrator password when prompted.
4. The Erase Assistant will show you a summary of what will be removed. Review it and click Continue.
5. The Mac will restart, erase, and return to the Setup Assistant. For Apple Silicon Macs this typically takes 5–15 minutes. Intel Macs may take longer.

This method handles FileVault, Activation Lock release, and NVRAM reset automatically. It is the cleanest and safest reset path on supported hardware.

Recovery Mode — Intel Macs on Big Sur or Earlier

1. Restart the Mac and immediately hold Command (⌘) + R until the Apple logo or spinning globe appears.
2. From the macOS Utilities window, choose Disk Utility.
3. In the sidebar, select Macintosh HD (or your startup volume). If you see a separate "Macintosh HD - Data" volume, erase that first.
4. Click Erase, choose APFS (or Mac OS Extended Journaled for older drives), and confirm. This wipes all user data.
5. Quit Disk Utility to return to the Utilities window.
6. Select Reinstall macOS and follow the prompts. The installer downloads from Apple's servers — you need a Wi-Fi connection.

Recovery Mode — Apple Silicon (Edge Cases)

On M-series Macs, Recovery is accessed by holding the Power button (not Command+R) until "Loading startup options…" appears. From there, choose Options → Continue. The reset flow is still best performed via Erase All Content and Settings rather than manually through Disk Utility unless you're restoring a specific macOS version or dealing with a corrupted volume.

Step 5 — After the Reset

Once the Setup Assistant appears, you have a clean Mac. At this point:

• If you're keeping the Mac, sign in with your Apple ID and restore from your Time Machine backup via Migration Assistant.
• If you're selling or gifting the Mac, power it off and hand it over. The recipient will set it up fresh with their own Apple ID.
• If something went wrong during erase and macOS is missing, boot into Recovery (Power button on Apple Silicon; Command+R on Intel) and choose Reinstall macOS.

Common Mistakes to Avoid

• Erasing without signing out of Apple ID. Activation Lock will prevent the next user from setting up the Mac.
• Skipping the backup. Erase All Content and Settings gives you one confirmation dialog, then everything is gone.
• Using Terminal's rm -rf as a "manual reset." Deleting files does not clear FileVault keys, NVRAM, or Activation Lock. Use the proper reset path.
• Forgetting offline app data. Apps like Affinity, Sketch, and Capture One store project files locally. If those aren't in your Documents folder or iCloud, they won't be in your backup.

Summary

A factory reset on a modern MacBook is a straightforward process when you follow the right sequence: back up, declutter, sign out, then erase. The Erase All Content and Settings path introduced in Monterey handles the hard parts — FileVault, Activation Lock, and firmware state — automatically, and the Recovery mode fallback covers every older Mac. Take the twenty minutes to do the pre-reset pass properly, and you'll have a smaller backup, a genuinely clean restore point, and none of the anxiety that comes from hoping you didn't forget something important.