Restart Mac in Safe Mode: Step‑by‑Step 2026 Guide

Introduction

Choosing to restart a Mac in Safe Mode is one of the most effective troubleshooting steps you can take. Safe Mode starts your computer with only the essential system software it needs to run. It prevents third‑party extensions, login items, and non‑essential fonts from loading. At the same time, it runs a disk check and clears system caches, which often resolves sluggish performance, recurring freezes, and unexplained crashes.

This guide walks you through the exact steps for both Apple Silicon and Intel Macs. For a complete overview of every restart method, see our how to restart a Mac guide . If your computer is completely frozen and you cannot reach the normal restart options, our force restart a frozen Mac guide will get you to a state where Safe Mode is accessible.

How to Restart in Safe Mode on Apple Silicon Macs

The process to restart a Mac in Safe Mode on Apple Silicon (M1, M2, M3, M4) is different from older Intel models. Follow these steps:

Shut down your Mac completely. Click the Apple menu > Shut Down, or press and hold the Power button if frozen.
Press and hold the Power button (Touch ID) until “Loading startup options” appears on the screen. This usually takes about 10 seconds.
Select your startup disk (typically “Macintosh HD”) using the mouse or arrow keys.
Press and hold the Shift key on your keyboard.
While holding Shift, click Continue in Safe Mode. Your Mac restarts in Safe Mode.

You can release the Shift key once the login screen appears. A red “Safe Boot” label will display in the upper‑right corner of the screen, confirming you are in Safe Mode.

How to Restart in Safe Mode on Intel Macs

To restart a Mac in Safe Mode on an Intel‑based Mac, the steps are simpler:

Restart your Mac normally (Apple menu > Restart, or use the Control‑Command‑Power shortcut).
Immediately after the startup sound or Apple logo appears, press and hold the Shift key.
Continue holding Shift until the login screen appears. This may take longer than a normal startup because Safe Mode runs a disk check in the background.
Log in as usual. You may be asked to log in twice—once for the initial Safe Mode boot and once for your user account.

The “Safe Boot” indicator in the menu bar confirms you entered Safe Mode successfully.

How to Verify You Are in Safe Mode

When you restart a Mac in Safe Mode, you can confirm it in two ways. The most visible sign is the red “Safe Boot” text in the upper‑right corner of the login screen and the desktop menu bar. Additionally, the system runs noticeably slower, animations are reduced, and some applications may not function correctly—this is expected behavior.

To see a system report, open System Information (Option‑click the Apple menu > System Information), click Software in the sidebar, and look at the Boot Mode field. It should read “Safe.”

When to Use Safe Mode

You should restart a Mac in Safe Mode whenever your computer exhibits persistent problems. These include frequent freezes or crashes, applications that refuse to open, startup problems where your Mac gets stuck on the Apple logo, and performance issues that do not resolve with a normal restart. If you recently installed new software and your Mac started acting strangely immediately afterward, Safe Mode can help you isolate the cause.

Because Safe Mode clears system caches and performs a first‑aid check on your startup disk, it often fixes problems automatically. After restarting normally, many users find their issues have vanished. If problems persist, you may need to investigate specific login items or kernel extensions.

How to Exit Safe Mode

Exiting Safe Mode is straightforward. Simply restart your Mac normally without holding any keys (Apple menu > Restart). Your computer boots back into standard macOS with all extensions and login items enabled. Do not restart from Safe Mode if you are still diagnosing a problem; instead, test whether the issue remains while in Safe Mode, then restart normally to compare.

Frequently Asked Questions

Will Safe Mode delete my files?
No. Safe Mode does not delete any documents, photos, or applications. It only prevents third‑party software from loading temporarily.

Why does my Mac run slower in Safe Mode?
Safe Mode disables hardware graphics acceleration and many system optimizations. The slower performance is normal and temporary.

Can I use Wi‑Fi in Safe Mode?
On Apple Silicon Macs, Wi‑Fi remains available. On Intel Macs, network functionality may be limited depending on your macOS version. For troubleshooting that requires internet access, use Safe Mode with Networking.

How often should I use Safe Mode?
Only when troubleshooting. It is not necessary for routine maintenance. Regular restarts and keeping macOS updated will prevent most issues.