A Mac that freezes at the login screen may show a spinning beach ball, stop responding after you enter your password, or remain stuck on a blank or unresponsive screen. The cause can be a problematic login item, a failed system update, damaged startup data, low storage, or an external accessory.
Start with a forced restart and disconnect nonessential devices. If the problem returns, start the Mac in Safe Mode, remove troublesome login items, check available storage, and use macOS Recovery to repair the startup disk or reinstall macOS without immediately erasing your files.
Quick Answer
- Wait a few minutes to confirm the Mac is genuinely frozen. 2. Disconnect external drives, hubs, printers, and other nonessential accessories. 3. Force the Mac to shut down by holding the power button or Touch ID button for about 10 seconds. 4. Start it again and try logging in. 5.
Before You Force the Mac to Shut Down
If the screen appears frozen, wait several minutes if possible. A Mac may take extra time to finish an update, decrypt a disk, or load a large user account. Look for signs of activity:
- Does the pointer move?
- Does the keyboard respond?
- Does pressing Caps Lock change its indicator light?
- Does the screen change when you press the power button briefly?
- Do you hear the fans or drive working?
If the pointer moves, try pressing Command-Option-Escape. If the Force Quit Applications window opens, select the unresponsive app and click Force Quit. This may close the app and discard unsaved work in that app, but it is less disruptive than restarting the entire Mac.
If nothing responds, continue with a forced shutdown.
Force Restart the Mac
- Disconnect nonessential accessories, including USB hubs, external drives, printers, cameras, and audio interfaces. Leave the display, keyboard, mouse, power adapter, and network connection attached if needed.
- Press and hold the Mac’s power button or Touch ID button for about 10 seconds.
- Release the button when the screen goes dark.
- Wait at least 10 seconds.
- Press the power button once to start the Mac.
- Try signing in again.
A forced shutdown may lose unsaved work and can interrupt a system operation. Do not repeatedly force the Mac off and on unless it remains unresponsive.
If the Mac does not power on at all, the problem may be different from a login-screen freeze. See How to Fix a Mac That Won’t Turn On.
Disconnect External Devices
A damaged cable, incompatible accessory, or failing external drive can delay startup or prevent the login process from completing.
After shutting down the Mac, disconnect everything except the essentials:
- USB and Thunderbolt hubs
- External hard drives and SSDs
- Printers and scanners
- iPhone or iPad cables
- Webcams and audio equipment
- SD cards and card readers
- Third-party keyboards and mice
- External displays, if the Mac can start without them
Start the Mac with only its built-in keyboard and trackpad when possible. If it starts normally, reconnect devices one at a time and restart or log in after each connection. The last device connected before the problem returns is a likely cause.
If an external startup disk is connected, disconnect it only when you are certain the Mac should start from its internal storage.
Start the Mac in Safe Mode
Safe Mode starts macOS with a limited set of components. It can help determine whether the freeze is caused by software that loads during a normal startup.
Apple silicon Macs and Intel-based Macs use different steps. If you are unsure which type of Mac you have, try the instructions for Apple silicon first if the Mac has a power button rather than a traditional startup key behavior.
Apple silicon Mac
- Shut down the Mac. If it is frozen, hold the power button for about 10 seconds.
- Press and hold the power button until Loading startup options appears.
- Select a startup volume.
- Hold the Shift key, then click Continue in Safe Mode.
- Sign in.
You may need to sign in more than once. Safe Mode may look different or run more slowly than usual.
Intel-based Mac
- Shut down the Mac.
- Turn it on and immediately press and hold the Shift key.
- Release the key when the login window appears.
- Sign in.
If FileVault is enabled, you may see a disk-unlock screen before the normal login window. Enter the appropriate password when prompted.
For a visual walkthrough of the startup-key differences, see How to Start a Mac in Safe Mode.
What to do in Safe Mode
If the Mac works in Safe Mode, restart it normally once. A single successful Safe Mode startup can clear temporary startup problems. If the freeze returns, investigate software that loads when your account starts.
Open Apple menu > System Settings > General > Login Items. Under Open at Login, select unfamiliar, recently installed, or unnecessary items and click the minus button. Under Allow in the Background, temporarily turn off background items associated with software you do not need.
Removing a login item changes what opens automatically; it does not normally uninstall the app. You can add the item back later with the plus button if it proves unrelated.
Also uninstall software that was installed shortly before the problem began, especially:
- Antivirus or security utilities
- System-cleaning tools
- Display and window-management utilities
- VPN or network-filtering software
- Input managers and keyboard utilities
- Drive-management software
- Third-party system extensions
Use the developer’s uninstaller when one is provided. Deleting an app from Applications may not remove all of its system components.
Check Free Storage
macOS needs available storage for temporary files, updates, virtual memory, and account startup tasks. A nearly full startup disk can cause long delays or a freeze at login.
If you can sign in, open Apple menu > System Settings > General > Storage. Review recommendations and remove files you no longer need. Empty Trash after confirming that it contains nothing important.
Prioritize large, safe-to-review items:
- Old downloads
- Unneeded videos and disk images
- Duplicate installers
- Unused applications
- Large files in cloud-storage folders that are already stored online
- Old iPhone or iPad backups, if you no longer need them
Do not delete unknown files from system folders to create space. If the Mac freezes before you can open Storage, try Safe Mode or macOS Recovery.
Test Another User Account
A freeze that affects only one account may be caused by that account’s login items, preferences, or background data.
If you can reach the desktop, open Apple menu > System Settings > Users & Groups and click Add Account. Create a temporary standard user, sign out, and test the new account.
If the new account works normally, the Mac’s core startup system may be functioning correctly. Focus on the original account’s login items, recently installed software, and user-specific preferences.
Do not delete the affected account as a test. Deleting an account can remove its home-folder data. Back up the account first if you eventually need to recreate it.
Use macOS Recovery
If the Mac freezes in both normal startup and Safe Mode, use macOS Recovery. Recovery runs separately from the normal system and provides tools for checking the startup disk.
Start macOS Recovery
Apple silicon Mac
- Shut down the Mac.
- Press and hold the power button until Loading startup options appears.
- Click Options, then click Continue.
- Select an administrator account if asked and enter its password.
Intel-based Mac
- Shut down the Mac.
- Turn it on and immediately press and hold Command-R.
- Release the keys when the Apple logo or a spinning globe appears.
- Select an administrator account if asked and enter its password.
If macOS Recovery does not appear, shut down and try again. On some keyboards, a built-in or wired keyboard works more reliably than a wireless keyboard during startup.
Run First Aid
- In Recovery, open Disk Utility.
- Select View > Show All Devices.
- In the sidebar, select the volumes and containers under the internal physical disk.
- Click First Aid, then click Run.
- Follow the prompts for each relevant volume, container, and device.
First Aid checks and repairs certain file-system problems. It does not recover every type of disk failure, and it does not replace a backup.
If Disk Utility reports that the disk cannot be repaired, copy important files from Recovery if possible and avoid repeatedly modifying the disk. A failing storage device may require professional data recovery or replacement.
Reinstall macOS
If First Aid completes but the Mac still freezes, choose Reinstall macOS in Recovery. Reinstalling macOS is intended to replace system files while preserving your user data, but you should still maintain a backup before proceeding whenever possible.
Follow the onscreen instructions and select the existing startup disk. Keep the Mac connected to power and do not interrupt the installation.
Do not choose Erase or use Disk Utility > Erase unless you have a current backup and are prepared to remove the contents of the selected disk. Erasing the startup disk deletes the operating system, accounts, apps, and files stored there.
Reset NVRAM on an Intel Mac
NVRAM stores a small amount of startup-related information, such as selected startup-disk settings and display-related preferences. Resetting it can help with certain startup problems on Intel-based Macs, but it is not a universal fix.
To reset NVRAM:
- Shut down the Mac.
- Turn it on and immediately hold Option-Command-P-R.
- Keep holding the keys for about 20 seconds.
- Release the keys and allow the Mac to start.
This procedure applies to Intel-based Macs. Apple silicon Macs manage startup settings differently and generally do not use the same manual key combination. Resetting NVRAM may change selected startup-disk or display settings. For background and model-specific considerations, see What is NVRAM and why is it necessary to reset it in Macbook, iMac, Mac mini?.
Troubleshooting Common Login-Screen Symptoms
The password field accepts input, but login never finishes
Disconnect external devices, then try Safe Mode. If Safe Mode works, remove login items and recently installed system utilities. Also check whether the startup disk is nearly full.
The Mac freezes immediately after entering the password
This often points to software that loads for a specific user account. Test another user account and review System Settings > General > Login Items. Remove items one at a time rather than deleting many apps at once.
The screen is black, but the Mac appears to be running
Adjust the display brightness, disconnect external monitors, and try a brief press of the power button. If the Mac responds to keyboard input but the display does not, the issue may involve the display, cable, or graphics system rather than the login process.
The Mac returns to the login screen repeatedly
A restart loop can result from damaged system files, an incomplete update, or a startup-disk problem. Use Safe Mode, then run First Aid from Recovery if the loop continues.
The Mac freezes with an Apple logo or progress bar
That is a startup-stage problem rather than a normal login-window problem. Avoid repeatedly forcing shutdowns. Use Safe Mode and macOS Recovery, and consult How to Fix a Mac Stuck on the Apple Logo.
When to Get Professional Help
Contact Apple Support or a qualified repair provider if:
- Disk Utility reports a hardware error or cannot repair the disk.
- The Mac freezes in Recovery as well as normal startup.
- You hear repeated clicking, unusual noises, or see signs of physical damage.
- The Mac will not accept a known-correct password after other startup issues are resolved.
- You need files from a failing or unencrypted drive.
- The problem began after liquid exposure, a drop, or an electrical event.
If the data is important, avoid erasing the Mac or installing cleanup utilities before securing a backup.
Frequently Asked Questions
Will forcing a Mac to shut down damage it?
An occasional forced shutdown is unlikely to damage the Mac, but it can cause unsaved work to be lost and may interrupt a system operation. Use it only when normal commands do not work.
Can Safe Mode fix a frozen login screen permanently?
Safe Mode may identify or remove the cause, such as a login item or incompatible utility.
Should I reset the password?
Usually, no. A Mac that freezes after accepting the password is more likely experiencing a startup, storage, or software problem than an incorrect-password problem. Reset the password only when you have confirmed that the credentials themselves are the issue.
Will reinstalling macOS delete my files?
A standard Recovery reinstall is designed to preserve user data, but no installation procedure is risk-free. Back up important files first, and never select Erase unless you intend to remove the disk’s contents.
What if the Mac freezes only once?
Restart normally and monitor it. If the problem does not return, it may have been a temporary software or accessory issue. If it happens again, note what changed before the freeze and begin with external devices, Safe Mode, and available storage.
Final Thoughts
A Mac frozen at the login screen is often recoverable without erasing the computer.