Safe mode是什么意思

"Safe Mode" is a diagnostic mode of a computer operating system (OS) that starts the system with a minimal set of drivers and programs to help identify problems with the computer. When a computer is started in Safe Mode, it loads only the essential drivers and services required for the system to function, bypassing any third-party applications, drivers, or services that might otherwise cause issues during the boot process.

Safe Mode is particularly useful for troubleshooting and fixing problems on a computer. It can help in the following ways:

1. Diagnosing Startup Issues: If a computer fails to start normally, Safe Mode can help determine whether the problem is caused by a software application or a driver that is not loading correctly.

2. Removing Malware: Some antivirus and antimalware tools can run more effectively in Safe Mode because there are fewer processes and drivers running on the system, which can prevent malware from running and interfering with the cleaning process.

3. Resolving Software Conflicts: If you suspect that a recently installed program or update is causing issues with your system, Safe Mode can help you identify and remove the problematic software.

4. Rolling Back Changes: If you recently made changes to your system and it starts behaving erratically, Safe Mode can allow you to undo those changes without the interference of other running applications.

To enter Safe Mode, you typically need to access the boot menu or change the boot options in the BIOS/UEFI settings. The exact steps can vary depending on the operating system and the manufacturer of the computer or motherboard.

In Windows, for example, you can enter Safe Mode by:

• Pressing the F8 key (or a specific function key like F11 or F12, depending on the manufacturer's setup) during the boot process before the Windows logo appears. This will bring up the Advanced Boot Options menu, where you can select "Safe Mode" or "Safe Mode with Networking" (to have internet access in Safe Mode).

• If the F8 key doesn't work, you may need to enter the BIOS/UEFI settings and change the boot order to boot from a DVD or USB drive that contains a bootable version of Windows. Then, you can use the System Configuration tool (msconfig.exe) to select Safe Boot from the Boot tab.

• In Windows 10, you can also use the Settings app to change the boot options. Go to "Update & Security" > "Recovery" > "Advanced Startup" and click "Restart Now" to enter the Advanced Startup options, where you can select "Troubleshoot" > "Advanced Options" > "Startup Settings" > "Restart" to access Safe Mode.

In macOS, you can enter Safe Mode by restarting the computer and holding down the Shift key as the computer starts up. Release the Shift key when you see the Apple logo and progress bar.

Safe Mode is not a cure-all for computer problems, but it is a valuable tool for identifying and resolving issues that might otherwise be difficult to diagnose.