Recovering a Mac That Won’t Boot Past the Apple Logo

4 Sep 2026

You press the power button, hear the startup sound or see the display light up, and the Apple logo appears. Then nothing else happens.

The progress bar may stop at the same point every time, move extremely slowly, disappear and restart, or leave the Mac trapped in a continuous boot loop.

Seeing the Apple logo is useful because it usually means the Mac has powered on and found a startup disk. The failure is happening while macOS is loading from that disk. Apple recommends using macOS Recovery and Disk Utility when a Mac remains stuck on the Apple logo or progress bar.

Possible causes include:

A failed or incomplete macOS update
File-system damage
Very low storage
A faulty external device
Incompatible startup software
A damaged system extension
Problems with the internal storage
Corrupt macOS files
A hardware fault

The safest recovery process begins with simple checks, then moves through Safe Mode, Disk Utility and reinstalling macOS before considering erasing the Mac.

First, Give the Mac Enough Time

A startup progress bar does not always move steadily.

After an update, file-system check or major software change, the bar may pause for a surprisingly long time. The Mac may also restart more than once while completing an installation.

Leave it connected to power and wait before forcing it off, particularly when:

A macOS update was recently started
The Mac has just been restored or migrated
FileVault is enabled
The internal drive is nearly full
The progress bar is still moving occasionally

If the Mac has shown no visible change for an extended period, feels unusually hot or repeatedly restarts at the same position, continue with the steps below.

Disconnect External Devices

A connected accessory can interfere with startup.

Shut the Mac down and disconnect everything except essential power, including:

USB hubs
Thunderbolt docks
External displays
External drives
Printers
Audio interfaces
Network adapters
Memory cards
Phones and tablets

Then try starting the Mac again.

An external drive might contain a damaged volume, an old bootable system or software that causes startup to stall. A dock can also introduce storage, display and power problems simultaneously.

If the Mac starts normally, reconnect devices one at a time and restart after each connection until the problem returns.

Force the Mac Off Only When Necessary

When the Mac is completely unresponsive, press and hold the power button or Touch ID button for up to ten seconds until it turns off.

Wait several seconds, then press the power button normally.

Apple lists a prolonged power-button press as the method for shutting down an unresponsive Mac, although unsaved work may be lost.

Repeated forced shutdowns are not a repair. They should only be used to regain control before entering Safe Mode or Recovery.

Determine Whether You Have Apple Silicon or Intel

The startup procedure differs depending on the Mac.

A Mac with Apple silicon uses an Apple-designed chip such as:

M1
M2
M3
M4
A later M-series processor

Older Macs generally use Intel processors.

Where the Mac previously worked, its processor type may be available from purchase records, the model specification or another device associated with your Apple Account.

Using the wrong startup-key procedure will not usually damage anything, but it may appear as though Recovery or Safe Mode is unavailable.

Try Safe Mode

Safe Mode starts macOS while limiting third-party software loaded during startup. It also performs certain system checks and clears some temporary caches.

If the Mac starts successfully in Safe Mode, the problem is more likely to involve:

A login item
A third-party extension
Security software
A damaged cache
A font
A startup utility
Software installed shortly before the failure

Apple recommends Safe Mode for determining whether software loaded during startup is responsible for a Mac problem.

Start an Apple silicon Mac in Safe Mode

Shut down the Mac completely.
Press and hold the power button.
Keep holding it until Loading startup options appears.
Select the startup volume, normally Macintosh HD.
Press and hold Shift.
Select Continue in Safe Mode.

Start an Intel Mac in Safe Mode

Turn on or restart the Mac.
Immediately press and hold Shift.
Release the key when the login window appears.
Sign in.

You may be asked to sign in twice. Safe Boot should appear in the menu bar when Safe Mode is active.

What to Do If Safe Mode Works

Once signed in, back up important files immediately.

Then investigate recent changes:

Remove recently installed applications
Disable unnecessary login items
Uninstall unsupported security software
Remove obsolete device utilities
Confirm there is adequate storage
Install pending macOS updates
Check for incompatible system extensions

Open:

System Settings > General > Login Items & Extensions

Review both Open at Login and Allow in the Background.

Restart normally after making changes.

If the Mac still boots only in Safe Mode, avoid continuing to remove random components. The fault may require a more careful examination of logs, extensions or the macOS installation.

Check Available Storage

macOS can become unstable when the startup disk is completely full.

If Safe Mode works, open:

System Settings > General > Storage

Remove or move obvious large items such as:

Old installers
Large videos
Unused applications
Downloads
Virtual machines
Duplicate archives
Unnecessary device backups

Try to create significantly more than just a few megabytes of free space. macOS needs working room for temporary files, updates, logs and virtual memory.

Do not delete unfamiliar files from the System or Library folders simply to recover storage.

Enter macOS Recovery

macOS Recovery is a built-in recovery environment containing tools for repairing the startup disk, reinstalling macOS and restoring from a backup.

Apple’s current Recovery tools can be used to repair internal storage, reinstall macOS and restore data from Time Machine.

Apple silicon Mac

Shut down the Mac.
Press and hold the power button.
Continue holding it until Loading startup options or the Options gear appears.
Select Options.
Select Continue.
Choose an administrator account and enter its password if requested.

Intel Mac

Turn on the Mac.
Immediately press and hold:

Command + R

Release the keys when the Apple logo or spinning globe appears.

On Intel Macs, alternative Recovery combinations may install different compatible versions of macOS:

Option + Command + R

usually starts Internet Recovery for the latest compatible macOS.

Shift + Option + Command + R

may offer the version originally supplied with the Mac or the nearest version still available.

Use a wired or built-in keyboard if startup combinations are not being detected reliably.

Run Disk Utility First Aid

Once inside Recovery:

Select Disk Utility.
Select Continue.
Choose View > Show All Devices.
Locate the internal startup device and its volumes.

A typical APFS startup disk may contain entries such as:

Macintosh HD

Macintosh HD - Data

It may also sit inside an APFS container beneath the physical SSD.

Apple recommends running First Aid beginning with the lowest volume in the hierarchy, then working upwards through the remaining volumes, container and physical storage device.

For each item:

Select the lowest listed volume.
Choose First Aid.
Select Run.
Wait for the check to complete.
Move to the next item above it.
Repeat until the physical device has also been checked.

Do not interrupt First Aid while it is operating.

What the Disk Utility Result Means

First Aid reports no errors

Quit Disk Utility and restart the Mac.

If it remains stuck, return to Recovery and reinstall macOS.

First Aid repairs errors

Run First Aid again until no further errors are reported.

Then restart.

First Aid cannot repair the disk

Back up or recover the data before erasing anything.

Disk Utility may advise that the storage must be erased and reformatted. Apple states that when Disk Utility cannot repair detected errors, erasing the disk may be required.

The internal disk does not appear

Choose View > Show All Devices first.

If the physical internal storage still does not appear:

Shut down the Mac.
Disconnect all non-essential devices.
Re-enter Recovery.
Check Disk Utility again.

Apple advises that a startup disk that remains absent from Disk Utility may indicate that the Mac requires service.

Do not attempt to reinstall macOS onto a disk that is not detected.

Reinstall macOS Without Erasing the Mac

If Disk Utility completes but the Mac still will not start, return to the main Recovery window and select:

Reinstall macOS

Follow the onscreen instructions and choose the existing startup volume.

A standard Recovery reinstall is designed to replace macOS system files without deliberately erasing personal files or installed applications. However, any major repair carries risk, especially when storage corruption is already present.

Back up important data first wherever possible.

During reinstallation:

Keep the Mac connected to power
Maintain a stable internet connection
Do not close the lid
Do not force the Mac off
Allow multiple restarts
Expect the screen to remain blank occasionally

The installer may take longer than the time estimate suggests.

The Installer Cannot See Macintosh HD

If the macOS installer cannot display a suitable destination, return to Disk Utility.

Check whether:

Macintosh HD is mounted
The volume is unlocked
FileVault credentials are accepted
First Aid completes
The physical internal disk is visible

If the volume is present but locked, select it and choose Mount, then enter an authorised password.

Do not create random new partitions or volumes unless the existing disk structure has been assessed. Doing so can make data recovery more difficult.

The Installer Says There Is Not Enough Space

A reinstall requires free storage.

Where Safe Mode still works, remove or move large files before reinstalling.

If the Mac cannot boot at all, options may include:

Transferring files from Recovery
Sharing the disk with another Mac
Restoring from a Time Machine backup
Using professional data-recovery assistance

Do not erase the disk simply because the installer lacks space unless the data is safely backed up.

Use Disk Sharing on Apple Silicon

On a Mac with Apple silicon, Recovery may provide Share Disk, allowing the internal drive to be accessed from another Mac over a USB-C or Thunderbolt connection.

This can help retrieve files before a reinstall or erase.

From Recovery:

Open Utilities.
Select Share Disk.
Choose the volume to share.
Start sharing.
Connect the affected Mac to another Mac.
Access it through the other Mac’s network locations.

Encrypted volumes may require an authorised account password.

Copy the most important files first. Do not assume the failing storage will remain accessible indefinitely.

Use Target Disk Mode on Compatible Intel Macs

Some Intel Macs support Target Disk Mode.

Start the affected Mac while holding:

Connect it to another compatible Mac using the appropriate Thunderbolt or FireWire connection.

The affected Mac’s storage may then appear as an external drive.

Support varies by model, operating system and security settings. If the drive is not visible or repeatedly disconnects, stop and consider professional recovery rather than repeatedly stressing potentially failing storage.

Restore from a Time Machine Backup

If the Mac has a current Time Machine backup, Recovery can restore the system from that backup.

This may be appropriate when:

The failure started after an update
The system volume is badly damaged
Reinstalling macOS does not help
The startup disk has been replaced
A known-good backup predates the fault

From Recovery, choose:

Restore from Time Machine

Then select the backup destination and appropriate backup date.

Be aware that a full restore can replace current system and user data with the state stored in the selected backup.

Files created after that backup may need to be recovered separately.

Check the Startup Disk Selection

A Mac can stall or show unexpected startup behaviour if it is trying to use the wrong volume.

On Apple silicon, hold the power button to reach startup options and select the intended startup disk.

On Intel Macs, hold:

Option

during startup to open Startup Manager.

Select Macintosh HD or the correct startup volume.

Apple documents the startup-options screen on Apple silicon and the Option-key Startup Manager on Intel Macs as ways to choose a startup disk.

If the correct disk is missing, return to Disk Utility.

Reset NVRAM on an Intel Mac

Intel Macs store certain startup information in NVRAM.

A reset may help when the Mac:

Selects the wrong startup disk
Uses an incorrect display mode
Behaves unusually before macOS loads
Fails after a startup-disk change

To reset it:

Turn off the Mac.
Turn it on.
Immediately hold:

Option + Command + P + R

Keep holding for approximately 20 seconds.

Apple silicon Macs manage these settings differently and do not normally require the traditional NVRAM key-combination reset.

NVRAM repair is less likely to solve a Mac that consistently stalls halfway through loading macOS, but it can help rule out startup-setting problems.

Avoid Unnecessary SMC Resets

An SMC reset applies only to Intel Macs and is primarily connected with power, battery, thermal and certain hardware-control behaviour.

It is unlikely to repair damaged macOS files or a corrupt startup volume.

On Apple silicon, there is no traditional user-performed SMC reset. Shut down the Mac, wait briefly and start it again.

Do not spend time repeating SMC resets when Disk Utility reports storage errors or the Mac consistently freezes at the same point in the progress bar.

Run Apple Diagnostics

Apple Diagnostics can check for certain hardware faults.

Apple silicon

Shut down the Mac.
Hold the power button until startup options appear.
Release the power button.
Press and hold:

Command + D

Intel Mac

Turn on the Mac.
Immediately hold:

If that does not work, try:

Option + D

Apple’s current Diagnostics procedure uses Command-D from startup options on Apple silicon and D or Option-D during startup on Intel Macs.

Record any reference codes displayed.

A successful diagnostic does not prove that the storage or logic board is completely healthy. Intermittent faults may not appear during a short test.

Consider a Firmware Revive or Restore

A small number of Apple silicon Macs and Intel Macs with Apple’s T2 Security Chip can experience firmware problems that prevent normal startup or Recovery.

Repair may require another Mac and Apple Configurator to perform either:

A revive, which attempts to repair firmware without erasing the internal storage
A restore, which repairs firmware and erases the Mac

This is an advanced procedure. A restore destroys data on the affected Mac.

Use Apple’s current instructions for the exact model, or have the process carried out by an experienced technician.

Firmware recovery is particularly relevant when:

Recovery will not load
The Mac displays an unusual blank or recovery screen
A macOS update was interrupted
The Mac repeatedly fails before reaching normal Recovery
The device is not detected correctly during startup

When Erasing the Mac Becomes Necessary

Erasing should be the final software-recovery step, not the first.

Consider it only when:

Important data is backed up or recovered
Disk Utility cannot repair the existing volumes
Reinstalling without erasing repeatedly fails
The system volume is severely damaged
A clean installation is required
Malware or extensive modification is suspected

Erasing the startup disk permanently removes local files. Apple explicitly advises making a backup before erasing and reinstalling macOS.

After erasing, return to Recovery and reinstall macOS.

The correct procedure differs between Apple silicon and Intel Macs, so follow the instructions for the specific model.

Do Not Erase When Data Is Not Backed Up

When the files matter more than getting the Mac running quickly, stop before erasing.

This is especially important when:

Disk Utility reports hardware or input/output errors
The internal disk appears intermittently
The Mac shuts down during disk access
The drive makes unusual noises on an older Mac
FileVault credentials are unavailable
The only copy of important business data is on the Mac

Every additional repair or reinstall attempt can complicate recovery from failing storage.

Professional data recovery may be more appropriate than repeatedly running First Aid or reinstalling macOS.

Signs the Internal Storage May Be Failing

Possible warning signs include:

The internal disk disappears from Disk Utility
First Aid repeatedly finds new errors
The Mac becomes extremely slow before failing
Files were becoming corrupt
The Mac restarts during disk access
Reinstallation repeatedly stops
Input/output errors appear
Apple Diagnostics reports a storage-related fault
The Mac freezes at different points on every startup

Solid-state storage can fail without the mechanical noises associated with older hard drives.

On many modern Macs, internal storage is integrated into the logic board, making hardware repair and data recovery more specialised.

Signs the Problem May Be Software

The fault is more likely software-related when:

Safe Mode works
Disk Utility reports no hardware-level errors
The problem began immediately after installing an application
Removing a login item resolves it
Reinstalling macOS restores normal startup
The Mac remains stable after startup
Apple Diagnostics reports no fault

Even then, maintain a current backup. A successful startup after repair does not guarantee the problem cannot return.

A Safe Recovery Order

When a Mac will not move past the Apple logo, follow this sequence:

Connect reliable power.
Wait long enough for a possible update or disk check.
Disconnect all non-essential accessories.
Force the Mac off only if it is completely stuck.
Try Safe Mode.
Back up immediately if Safe Mode works.
Enter macOS Recovery.
Run Disk Utility First Aid from the volumes upwards.
Restart and test.
Reinstall macOS without erasing.
Recover files through Disk Sharing, Target Disk Mode or backup if needed.
Run Apple Diagnostics.
Consider firmware recovery if Recovery itself will not work.
Erase only after the data is protected.
Arrange hardware repair if the internal disk is missing or errors continue.

Need Help Recovering a Mac That Will Not Start?

A Mac stuck at the Apple logo may have a damaged macOS installation, an incompatible startup item, file-system corruption or failing internal storage. Repeated forced restarts and unplanned erasing can increase the risk of lost data.

Hamilton Group can diagnose Mac startup failures, repair the disk and operating system, recover accessible files and determine whether the Mac needs software recovery or hardware repair.

Call 0330 043 0069 or visit hgmssp.com to speak with one of our IT experts.