How to Factory Reset a MacBook (Before Selling)

The 4-step pre-reset checklist, the 5-minute erase on modern Macs, the Recovery Mode method for older Intels — and the one skipped step (Activation Lock) that turns a sold Mac into a brick.

We buy Macs every week, and the same two mistakes show up constantly: Macs that arrive still Activation-Locked to a seller's Apple ID (which stops the sale cold), and people who spend an afternoon on a wipe that takes five minutes on any modern Mac. This is the exact process — the checklist first, then the right erase method for your Mac's age.

Before you erase: the 4-step checklist

Step	Time	Why it matters	How
1. Back up everything	30–60 min	A factory reset erases the drive completely and permanently. There is no undo.	Time Machine to an external drive (System Settings → General → Time Machine) is the gold standard — it captures apps, settings, and files in one pass. No external drive? Make sure Desktop & Documents sync is on in iCloud Drive and let photos finish uploading to iCloud Photos. Verify the backup finished before you touch anything else.
2. Sign out of iCloud — this kills Activation Lock	2 min	The single step people skip — and the one that makes a sold Mac a brick for its next owner.	System Settings → click your name at the top → scroll down → Sign Out. This turns off Find My Mac and releases Activation Lock. A Mac still locked to your Apple ID cannot be set up by anyone else, and every reseller (including us) checks for it on arrival. Modern “Erase All Content and Settings” signs you out as part of the flow, but doing it manually first is the belt-and-suspenders move on any Mac.
3. Sign out of Messages & deauthorize media	2 min	Stops your texts landing on a stranger's machine and frees one of your authorized-computer slots.	Messages → Settings → iMessage → Sign Out. Then open the Apple TV app (or Music) → Account → Authorizations → Deauthorize This Computer. Old iTunes purchases are limited to 5 authorized computers, and you can't deauthorize a Mac you no longer own without resetting all five at once.
4. Unpair Bluetooth devices	1 min	Keeps your AirPods, keyboard, and mouse from trying to reconnect to a Mac that's leaving the house.	System Settings → Bluetooth → hover each device → click the ⓘ or right-click → Forget This Device. Mostly matters if the Mac is staying in the same building as you — at a buyer's house it's moot, but it takes a minute.

Step 2 is the one that matters most. Activation Lock is the #1 reason trade-in payments get delayed — a Mac still tied to your Apple ID can't be set up by anyone else, period. If the Mac is already gone or won't boot, you can still release it remotely: sign in at icloud.com/find and remove the device from your account.

Modern Macs: Erase All Content and Settings (5 minutes)

If your Mac is Apple Silicon (M1 or later) or a 2018+ Intel with the T2 chip, running macOS Monterey or newer, you get the iPhone-style reset:

System Settings → General → Transfer or Reset → Erase All Content and Settings. (On Monterey: System Preferences menu → Erase All Content and Settings.)
Enter your password. The assistant shows everything that will be removed — Apple ID, Touch ID, accessories, Find My.
It prompts you to sign out of your Apple ID — this is what releases Activation Lock. Enter your Apple ID password when asked.
Click Erase All Content & Settings, and the Mac restarts to a black screen with a progress bar, then to the Hello setup screen.
Stop at Hello. Don't click through setup — hold the power button to shut it down. It's now exactly as it left the factory, macOS included.

Why it's so fast: these Macs encrypt the SSD by default, so the reset simply destroys the encryption keys — every byte on the drive becomes permanently unreadable in seconds, no overwriting needed. Nothing is recoverable afterward, by anyone.

Older Intel Macs: the Recovery Mode method (30–60 minutes)

Pre-2018 Intel Macs (and anything stuck before Monterey) don't have the one-click option. The process is older but not hard — just make sure you did the iCloud sign-out first, because this path will not do it for you:

Shut the Mac down fully. Power on and immediately hold Command-R until you see the Apple logo or spinning globe — that's Recovery Mode.
Open Disk Utility. Click View → Show All Devices. Select Macintosh HD.
Click Erase. Keep the format as APFS (or Mac OS Extended (Journaled) if that's what's offered on a very old Mac), scheme GUID Partition Map. If a separate Macintosh HD — Data volume exists, erase (or delete) that too.
Quit Disk Utility, then choose Reinstall macOS. It downloads and installs the version the Mac shipped-or-updated to — 30–60 minutes on a decent connection. Keep the charger plugged in.
When it reboots to the setup assistant, stop — shut it down. Done.

If Command-R gives you a flashing question-mark folder, the drive may already be empty or failing — try Internet Recovery with Option-Command-R instead. And if the Mac won't get through any of this because the machine itself is faulty, skip ahead: you don't need a successful reset to sell a broken MacBook — sign out at icloud.com/find and we handle the wipe on arrival.

After the reset: what the wiped Mac is worth

Most people factory-reset a Mac for one reason: it's leaving the house. A freshly wiped Mac at the Hello screen, signed out of iCloud, is exactly what every buyer and trade-in service wants to receive — it's the difference between a same-day payment and a week of "please remove Activation Lock" emails.

Working Mac, freshly reset: full working trade value. Look up your model's number — it takes one photo to lock it in.
Old or slow Mac: slow is not broken — see selling a MacBook Air or selling a MacBook Pro for model-by-model values.
Mac that can't complete the reset (won't boot, dead screen, liquid): still worth real money on parts — Macs that won't turn on and broken Macs of any kind. Release Activation Lock remotely at icloud.com/find and ship it as-is.
Handing it down instead? Stop at the Hello screen and let the family member set it up under their own Apple ID — and check how long MacBooks last to see how many years it realistically has left.

The full walkthrough of how a trade works — quote, free shipping label, payment timing — is in the step-by-step trade-in guide.

Honest take: the erase is the easy part — five minutes on any Mac from the last several years. The step that actually protects you and your buyer is signing out of iCloud, because that's what kills Find My and Activation Lock. Backup → iCloud sign-out → erase → stop at Hello. Do those four in order and the Mac is safe to hand to anyone.