macOS Catalina (10.15) was released in October 2019 and is the last macOS version supported on some older MacBook models. Factory resetting a MacBook running Catalina — whether to sell it, fix persistent issues, or start fresh — requires a specific process through macOS Recovery. This guide covers every Catalina reset method: erasing via Disk Utility, reinstalling macOS Catalina, what to back up first, how to sign out of everything before selling, and what to do if the MacBook will not reset normally.
For MacBook won’t turn on issues you may encounter during a reset, see our fix guide for MacBook won’t turn on — how to force start and all troubleshooting steps.
Which MacBook Models Run macOS Catalina?
| MacBook Model | Last macOS / Catalina Support |
| MacBook Pro 2012 | macOS Catalina (10.15) — last supported version |
| MacBook Pro 2013 | macOS Ventura (13) — can run newer than Catalina |
| MacBook Air 2013-2019 | macOS Ventura or Sonoma — newer than Catalina available |
| MacBook Pro 2015 (Retina) | macOS Monterey (12) — can run newer |
| MacBook Pro 2016-2019 | macOS Sonoma (14) — can run newer |
| MacBook Air M1/M2/M3/M4 | macOS Sequoia — far newer than Catalina |
Note: If your MacBook can run a newer macOS version than Catalina, you should upgrade before or after resetting — newer macOS versions have better security and features. The Catalina reset process below applies to all Intel MacBooks running Catalina.
Before You Reset — What to Do First
1. Back Up Your Data
- Time Machine: Connect an external drive → System Preferences → Time Machine → Back Up Now. This creates a complete backup you can restore from after the reset.
- iCloud: Ensure Documents, Desktop, and Photos are syncing to iCloud (System Preferences → Apple ID → iCloud) — these will be available on any Mac after sign-in.
- External drive: Manually copy important files to an external drive as a secondary backup.
2. Sign Out of Everything
Before wiping a MacBook you plan to sell or give away, sign out of all services:
- Apple ID: System Preferences → Apple ID → Overview → Sign Out (this disables Activation Lock / Find My Mac)
- iMessage: Messages → Preferences → iMessage → Sign Out
- FaceTime: FaceTime → Preferences → Sign Out
- iCloud: System Preferences → Apple ID → iCloud → Sign Out
3. Deauthorize iTunes / Apple Music
- Open Music (or iTunes on very old macOS) → Account → Authorizations → Deauthorize This Computer
- This prevents the computer from counting against your 5-device Apple Music/iTunes limit
How to Factory Reset MacBook with macOS Catalina — Full Erase
Step 1: Boot into macOS Recovery
- Restart the MacBook
- Immediately hold Command + R as the MacBook starts up
- Keep holding until you see the Apple logo or a spinning globe
- Release when the macOS Recovery screen appears (shows macOS Utilities menu)
Step 2: Erase the Startup Disk with Disk Utility
- In macOS Recovery, click Disk Utility → Continue
- In the left sidebar, select your startup disk — typically named ‘Macintosh HD’
- Click Erase in the toolbar
- Set Format to APFS (for SSDs) or Mac OS Extended (Journaled) for older HDDs
- Set Scheme to GUID Partition Map
- Name it ‘Macintosh HD’ → click Erase
- Wait for the erase to complete → close Disk Utility
Step 3: Reinstall macOS Catalina
- Back in the macOS Recovery menu, click Reinstall macOS → Continue
- Follow the prompts — the MacBook downloads and installs macOS Catalina from Apple’s servers
- Ensure the MacBook is connected to Wi-Fi and power — the download takes 20-60 minutes depending on internet speed
- The MacBook restarts multiple times during installation — do not interrupt
Step 4: Setup Assistant
After reinstallation, the MacBook boots to the Setup Assistant (the same screen you saw when it was new). If you are selling the MacBook, leave it at this screen — the buyer will set it up with their own Apple ID. If you are keeping it, proceed through Setup to sign in with your Apple ID and restore from Time Machine if desired.
How to Erase MacBook Catalina Without Reinstalling
If you want to erase the MacBook completely without reinstalling macOS (for recycling or if the buyer will install their own OS), stop after Step 2 — after the Disk Utility erase. The MacBook will boot to a question mark folder, indicating no OS is installed. This is appropriate for recycling centers or buyers who plan to install a fresh OS themselves.
How to Reset MacBook Catalina Without Losing Data
A full factory reset erases all data. If you want to fix issues without losing your files, try these alternatives first:
- Safe Mode boot: Restart holding Shift — boots without third-party extensions and clears caches. Fixes many software issues without data loss.
- Reinstall macOS without erasing: Boot Recovery → Reinstall macOS (without using Disk Utility first). This reinstalls macOS over the existing installation, preserving your personal files and apps. Fixes corrupted system files.
- Create a new user account: System Preferences → Users and Groups → add a new admin user. Log into the new account — if issues disappear, the problem is in your user profile, not the system.
macOS Catalina Internet Recovery — When the Drive is Already Erased
If your MacBook’s drive is already erased and you need to reinstall Catalina:
- Hold Command + Option + R at startup — this boots Internet Recovery, which downloads the macOS installer from Apple’s servers
- Note: Command+Option+R installs the latest macOS compatible with your MacBook — not necessarily Catalina. If your MacBook supports newer macOS, it will install the newest version.
- To specifically reinstall Catalina on a MacBook that supports newer versions, you need a Catalina installer USB drive or to use Command+R (regular Recovery, which installs the last OS that was on the Mac)
Reset MacBook Pro 2012 with Catalina
The MacBook Pro 2012 (both 13-inch and 15-inch) runs macOS Catalina as its maximum supported version. The reset process is identical to the above. Key notes for 2012 models:
- MacBook Pro 2012 uses a hard drive (HDD) in base configs or SSD in upgraded configs — use Mac OS Extended (Journaled) format if the drive is HDD; APFS if it is an SSD
- Internet Recovery on 2012 MacBook Pro will install Catalina since it is the latest compatible version
- The 2012 MacBook Pro has 8GB maximum RAM — performance after Catalina reinstall will be functional but noticeably slower than modern Macs
For all other MacBook tips including safe mode, WiFi fixes, and keyboard shortcuts, see our complete MacBook tips and how-to guide — 40+ essential MacBook how-tos.
For Apple’s official Catalina reinstallation guide, see Apple Support — How to reinstall macOS. For backing up before a reset, see Apple Support — Back up your Mac with Time Machine.
After the Reset — Setting Up Your MacBook Again
Restore from Time Machine After Catalina Reset
If you backed up to Time Machine before resetting, you can restore your data during Setup Assistant: when prompted, choose to restore from a Time Machine backup → select your backup drive → choose the most recent backup. This restores all your files, apps, and settings to the state before the reset.
Migration Assistant can also be used after initial setup: search Migration Assistant in Spotlight → choose to restore from a Time Machine backup. This lets you complete the initial setup first and restore data separately.
What Gets Erased vs What Stays in iCloud
A factory reset erases everything stored locally on the MacBook: all files in Documents, Desktop, Downloads, Applications, and user data. It does NOT delete data stored in iCloud — your iCloud Drive files, Photos in iCloud, Contacts, Calendar, and Notes all remain in iCloud and re-download when you sign in with your Apple ID after the reset.
Apps purchased from the Mac App Store are not deleted from your Apple ID — they can be re-downloaded free from the App Store after the reset. Third-party apps installed outside the App Store (downloaded from websites) need to be reinstalled from scratch.
Should You Upgrade from Catalina After Resetting?
If your MacBook supports a newer macOS version than Catalina, upgrading is strongly recommended after the reset. Catalina (10.15, released 2019) no longer receives security updates from Apple — running Catalina exposes your Mac to unpatched security vulnerabilities. Check System Preferences → Software Update after the reset to see if a newer macOS is available for your model.
macOS Big Sur (11), Monterey (12), Ventura (13), and Sonoma (14) are all free upgrades. The exception: MacBook Pro 2012 is limited to Catalina as its maximum — if you have a 2012 model, you cannot upgrade beyond Catalina and should be aware of the security implications of running an unsupported OS.
One important pre-reset step many users miss: deactivating Adobe Creative Cloud. If you have Adobe CC apps installed, open the Creative Cloud desktop app → click your profile icon → Sign Out before erasing. Adobe licenses are device-counted — signing out before erasing ensures your license is freed for the new installation. Failing to sign out may temporarily lock your Adobe license to the erased device.
For MacBook models that have been used for several years before the Catalina reset, this is also a good opportunity to check the storage drive health. In macOS Recovery after booting with Command+R, open Disk Utility → select the startup disk → click First Aid. If First Aid reports errors it cannot repair, the drive may be failing — consider data recovery before proceeding with the erase and reset.
If the MacBook shows a lock screen requesting an Apple ID password during Recovery (Activation Lock), the device is still linked to the previous owner’s Apple ID. This most commonly happens when buying a used MacBook that was not properly signed out before the sale. The only way to remove Activation Lock without the original Apple ID credentials is to contact Apple Support with proof of purchase — Apple can remove the Activation Lock with verification. Do not buy used MacBooks that show Activation Lock screens without first having the seller demonstrate they can unlock it.
macOS Catalina introduced a split system volume design called the Signed System Volume (SSV) — the macOS system files and user data are stored on separate APFS volumes (Macintosh HD and Macintosh HD – Data). When erasing in Disk Utility before a Catalina reset, you may see both volumes listed. Erase Macintosh HD — Disk Utility handles removing the Data volume automatically. Do not attempt to manually erase both volumes separately, as this can create complications with the reinstallation process.
Environmental disposal note: if you are resetting a MacBook that you plan to recycle or dispose of because it is no longer functional, Apple has a free recycling program — Apple Trade In (apple.com/shop/trade-in) accepts old MacBooks and either pays you trade-in value or recycles them responsibly at no cost. Even a non-functional MacBook Pro 2012 has some trade-in value for parts or materials recycling. Apple’s recycling program ensures components are properly handled rather than ending up in landfill. Complete the factory reset (or at minimum the Apple ID sign-out and disk erase) before handing the MacBook to any recycler to protect your personal data.
Bottom Line
| Back up first | Time Machine to external drive + sign out of Apple ID |
| Boot Recovery | Restart → hold Command + R → macOS Utilities appears |
| Erase disk | Disk Utility → select Macintosh HD → Erase → APFS format |
| Reinstall Catalina | macOS Recovery → Reinstall macOS → needs Wi-Fi + power |
| Preserve files | Reinstall macOS from Recovery WITHOUT erasing in Disk Utility |
| MBP 2012 specific | Max OS is Catalina — use Mac OS Extended if HDD |
| Selling MacBook? | Sign out Apple ID, iMessage, iCloud BEFORE erasing |
| Drive already erased | Command + Option + R for Internet Recovery |
Frequently Asked Questions
How do I factory reset a MacBook with macOS Catalina?
To factory reset a MacBook running Catalina: restart and hold Command+R to boot into macOS Recovery. Open Disk Utility → select Macintosh HD → Erase (APFS format). Close Disk Utility → Reinstall macOS → follow prompts to download and reinstall Catalina. Ensure Wi-Fi is connected and MacBook is on power. The process takes 30-60 minutes.
How do I wipe a MacBook with Catalina before selling?
Before wiping: sign out of Apple ID (System Preferences → Apple ID → Sign Out), iMessage, and FaceTime. Then restart → hold Command+R → Disk Utility → erase Macintosh HD → reinstall macOS. The MacBook will boot to Setup Assistant after reinstall — leave it there for the buyer to set up with their own Apple ID.
How do I erase a MacBook Pro 2012 with Catalina?
The MacBook Pro 2012 uses the same Catalina reset process: restart → hold Command+R → macOS Recovery → Disk Utility → erase the startup disk (use Mac OS Extended Journaled format for HDD, APFS for SSD) → reinstall macOS. macOS Catalina is the last supported version for the 2012 MacBook Pro — Internet Recovery (Command+Option+R) will install Catalina as the most compatible version.
Can I reset MacBook Catalina without losing data?
Yes — boot into Recovery (Command+R), but do NOT use Disk Utility to erase. Instead, directly choose Reinstall macOS from the Recovery menu. This reinstalls macOS Catalina over the existing installation, preserving all personal files, apps, and settings. It fixes corrupted system files without a full wipe.
How do I reset MacBook Air with macOS Catalina?
MacBook Air Catalina reset: restart → hold Command+R → macOS Recovery → Disk Utility → select startup disk → Erase (APFS format for MacBook Air SSD) → reinstall macOS Catalina. MacBook Air models from 2013-2017 that can only run Catalina follow this same process. Sign out of Apple ID before erasing if selling or giving away.
