Safe Mode starts your computer with only the essential programs Windows needs to run

Safe Mode is a diagnostic startup option that loads Windows with a minimal set of drivers and programs. It disables most third-party software, startup items, and non-essential services. You use Safe Mode when your computer won't start normally, when you need to remove malware, when a driver is causing crashes, or when you're troubleshooting a problem that disappears in Safe Mode but returns in normal startup.

The method to enter Safe Mode depends on your Windows version and whether your computer can still start at all. If Windows starts but runs poorly, you can access Safe Mode through the System Configuration tool. If Windows won't start normally, you'll use the boot menu or recovery options instead.

Key Takeaways

  • Safe Mode with Networking includes internet drivers, while Safe Mode alone does not — choose based on whether you need to download drivers or updates.
  • On Windows 10 and 11, holding Shift while clicking Restart from the sign-in screen takes you to recovery options where you can select Safe Mode.
  • If your computer won't start at all, you may need to use a Windows installation disc or USB drive to access Safe Mode through the boot menu.
  • Safe Mode disables most programs and startup items, so antivirus software and other security tools may not run — plan your troubleshooting accordingly.

Entering Safe Mode from the sign-in screen on Windows 10 and 11

If Windows starts but you want to boot into Safe Mode, the fastest route is through the sign-in screen. Hold down the Shift key, then click the power button in the bottom right corner. Select Restart while still holding Shift. Your computer will restart and show a blue screen with recovery options.

On this recovery screen, select Troubleshoot, then Advanced Options, then Startup Settings. Click Restart. After the restart, you'll see a numbered menu. Press 4 for Safe Mode, 5 for Safe Mode with Networking, or 6 for Safe Mode with Command Prompt. Your computer will restart again and boot into the Safe Mode you selected.

Using System Configuration if Windows starts normally

If your computer starts and runs (even slowly), you can enter Safe Mode without restarting immediately. Press Windows key + R to open the Run dialog, type msconfig, and press Enter. The System Configuration window opens.

Click the Boot tab. Under Boot Options, check the box next to Safe Boot. You'll see a dropdown menu — select Minimal for Safe Mode, or Network for Safe Mode with Networking. Click Apply, then OK. Windows will ask whether you want to restart now or later. Choose your preference, and your computer will boot into Safe Mode on the next startup.

To exit Safe Mode later, open System Configuration again, uncheck Safe Boot, and restart normally.

Accessing Safe Mode when Windows won't start

If your computer won't start into Windows at all, you'll need to interrupt the boot process. Restart your computer and watch the screen carefully. As soon as you see the manufacturer's logo (Dell, HP, Lenovo, etc.), press F2, F8, F10, or Delete repeatedly — the key varies by manufacturer. This opens the boot menu or BIOS setup.

Look for an option called Safe Mode, Diagnostic Mode, or Startup Settings. If you see a boot menu with drive options, select your Windows drive and press Enter. If the menu doesn't show Safe Mode directly, restart and try a different key. Common keys are F8 (Dell, HP), F2 (Lenovo), or Delete (ASUS).

If you cannot access the boot menu, you'll need a Windows installation disc or USB drive. Insert it, restart, and boot from the disc. When the Windows Setup screen appears, press Shift + F10 to open Command Prompt, then type bcdedit /set {default} safeboot minimal and press Enter. Restart without the disc, and Windows will boot into Safe Mode.

Safe Mode with Networking versus Safe Mode alone

Safe Mode loads only core Windows files and drivers. Safe Mode with Networking adds network and internet drivers, so you can connect to Wi-Fi or Ethernet. Choose Safe Mode with Networking if you need to download drivers, Windows updates, or antivirus definitions. Choose Safe Mode alone if you're removing malware and want to prevent it from communicating online, or if network drivers themselves are causing the problem.

Safe Mode with Command Prompt is a third option that opens a command-line interface instead of the graphical desktop. Use this if the desktop won't load even in Safe Mode, or if you need to run specific diagnostic commands.

What Safe Mode disables and what it doesn't

Safe Mode disables startup programs, third-party services, and most non-Microsoft drivers. It does not disable Windows Defender (the built-in antivirus), Windows Firewall, or core system processes. However, third-party antivirus software like Norton, McAfee, or Kaspersky will not run in Safe Mode — they are treated as startup programs and are disabled.

This matters because if you're trying to remove malware, Safe Mode prevents the malware from running, but it also prevents your antivirus from running. You'll need to manually locate and delete infected files, or use a bootable antivirus tool designed to run before Windows starts. If you're troubleshooting a driver or software conflict, Safe Mode's minimal environment usually makes the problem obvious — if the computer runs smoothly in Safe Mode but crashes in normal mode, the culprit is something that doesn't load in Safe Mode.

Exiting Safe Mode and returning to normal startup

If you entered Safe Mode through System Configuration, open msconfig again, uncheck Safe Boot, and restart. If you entered through the recovery menu, Safe Mode is temporary — restarting normally will boot into regular Windows. If you used the bcdedit command, restart and press Shift + F10 again, then type bcdedit /deletevalue {default} safeboot and press Enter to remove the Safe Mode setting.

After you exit Safe Mode, Windows may run a startup repair or disk check on the next boot. This is normal and usually takes a few minutes. Let it complete — do not force restart.

Frequently Asked Questions

Why does my computer keep booting into Safe Mode?

This usually means Safe Boot is still enabled in System Configuration or the bcdedit command is still active. Open msconfig, click the Boot tab, and uncheck Safe Boot. If that doesn't work, restart and press Shift + F10, then type bcdedit /deletevalue {default} safeboot. Restart normally after making either change.

Can I use Safe Mode to remove a virus?

Safe Mode prevents most malware from running, which makes it easier to find and delete infected files manually. However, your antivirus software won't run either. If manual removal is too difficult, use a bootable antivirus tool like Kaspersky Rescue Disk or Windows Defender Offline, which scan before Windows starts and don't rely on Safe Mode.

Will I lose my files if I restart into Safe Mode?

No. Safe Mode is a startup option only — it doesn't delete, modify, or move any files. Your documents, photos, and programs remain exactly where they are. Safe Mode simply changes which drivers and programs load when Windows starts.

What if Safe Mode won't start either?

If Safe Mode fails to load, the problem is likely a corrupted Windows system file or a hardware issue like a failing hard drive. Try running Startup Repair from the recovery menu (Troubleshoot > Reset This PC > Keep My Files), or use a Windows installation disc to run the Repair Your Computer option. If neither works, the hard drive may need testing or replacement.