Please provide the English content you want to translate, and I'll translate it into Chinese for you as soon as possible.

Solutions That Work Step-by-Step Troubleshooting
1. Fix Mac Won't Shut Down Issue
  1. Solution 1. Disconnect All External Devices...Full Steps
  2. Solution 2. Force Restart Your Mac...Full Steps
  3. Solution 3. Reset SMC and PRAM/NVRAM...Full Steps
2. Secure the Opening of Files Is your Mac restarting on its own out of the blue? It's quite annoying to...Full Steps

Do you have to hold down the power button or remove the battery to shut your Mac down properly and turn off the power? You may have recently upgraded your operating system, hardware, or apps, which can cause your Mac to have trouble shutting down. This is a common issue for people who are new to Macs and have just switched from a Windows computer. Unfortunately, after transferring data from a Windows machine to a Mac, your Mac can become temperamental and refuse to shut down.

Mac won't shut down issue

Occasionally, some software can prevent your Mac from shutting down properly. Your Mac may warn you that "An application is preventing shutdown," or it might not give you any error at all. External devices can also cause problems when you're trying to shut down your Mac. If your Mac becomes unresponsive and refuses to shut down without removing the battery, there could be other causes. Let's explore some solutions.

Related Articles

How to Recover Files on Mac After a Shutdown in 4 Steps

A MacBook Pro user turned to the Apple community for help, stating that his Pages document was lost during a Mac freeze and shutdown. He wanted to know how to recover the file.

Recover Deleted Files via Put Back

How to Fix a Mac That Won't Shut Down (in About 3 Minutes)

If you're experiencing issues with your Mac not turning off, try one of these three methods.

1. Disconnect all peripherals

An external device might be causing the issue. Disconnect all connected peripherals, and then try again for best results. If you have an iMac, leave only your mouse or Magic Trackpad connected to see if that helps.

Safely remove the drive by right-clicking it and selecting “Eject [Drive]” or dragging the icon to the Trash. If you can't eject the drive, then this is likely the source of your problem.

Force Eject Peripherals

Otherwise, you can force it to close from the Terminal with the following command:

Forcibly unmount the disk with the Disk Utility: ``` diskutil unmountDisk force /Volumes/DISK ```

First, retrieve a list of attached drives with the following command:

Disk Utility

2. Forcefully Shut Down Your Mac

If your Mac won't be used for an extended period, you can turn it off or force it to shut down, which quits all running apps immediately. You can turn off your Mac in one of three ways:

Press the Apple key, then select “Shut Down.” A dialog box will appear asking you to confirm that you want to turn off your computer. Click “Cancel” or “Shut Down” to exit this program. (If you don't choose one of these options, your Mac will shut down in a few minutes.)

Press Control+Eject (or press the Power button). When the dialog appears, click Shut Down.

To force your Mac to shut down, hold down the power button for several seconds. Alternatively, you can press Control + Option + Command + Eject to force your Mac to turn off.

Next up, we'll just translate this into American English: How to Force Shutdown Mac

If your whole Mac is frozen and unresponsive, a forced shutdown can be helpful. If only one app is frozen or behaving abnormally, it's usually best to force quit that app instead of restarting your whole computer. Try to avoid using a forced shutdown whenever possible.

3. Reset the SMC and PRAM/NVRAM

If all else fails, try resetting the SMC and PRAM/NVRAM.

Reset the SMC

The System Management Controller (SMC) on a Mac is a chip that controls power to most of the hardware components in your device. It's located inside the logic board of your computer. If the settings on the SMC become corrupt, it can cause problems with your Mac shutting down. You can fix this by resetting the SMC. Here's how:

Step 1: Turn off your Mac and unplug the power adapter (if connected).

Step 2: While holding down the "Shift + Control + Option" keys, press the power button.

Step 3: After ten seconds, release all buttons and press the Power button again. This should fix the problem.

mac reset smc pram

Reset the NVRAM

If resetting the SMC doesn't resolve the issue, you should reset the NVRAM (PRAM). NVRAM is a type of memory that stores key settings for your Mac, which can be accessed quickly when needed. If you're having issues with your MacBook when it's closing, try resetting the NVRAM. Follow these steps:

Step 1: Turn off your Mac, then turn it back on. As it starts up, press and hold these keys together: Option + Command + P + R.

Step 2: Hold the keys down until you see the Mac restart. Give it time to boot up. If all goes well, your issue will be resolved.

Please provide the English content you want to translate, and I'll translate it into Chinese for you as soon as possible.

Dealing with Open Files When a Mac Won't Shut Down or Restart Properly

Is your Mac restarting for no reason? It's frustrating to come back to your computer and find that it has unexpectedly shut down and restarted. If this is happening persistently, you may not be able to use your MacBook at all! It's important to find a solution right away. Read on to learn about the most common causes of a Mac that keeps restarting and what you can do to fix them.

If your Mac is having trouble starting up, first back up your critical data and settings. Sometimes, erasing your Mac or taking other measures that delete locally-stored data is the only option. Before diving into troubleshooting, make sure your data is safe. We strongly recommend using free Mac data recovery software to scan and recover lost files.

You can follow the step-by-step guide to learn how to use this Mac data recovery software to retrieve deleted or lost data.

Step 1: Select the location to scan

Launch the Mac Data Recovery Wizard, select the hard drive, SSD, SD card, USB flash drive, or TF card from where you lost data. Click “Search Lost Files” to start scanning.

Note: Before you proceed with data recovery, it's recommended that you click “Disk Backup” from the left sidebar and create a backup of your Mac to prevent further data loss. The software can then recover data from the Mac backup, and your computer can overwrite new data.

Select the location, then click Search for Lost Files

Step 2. Scan and filter lost Mac data

The software will automatically scan for lost data on your MacBook or iMac. Once the scan is complete, you can filter the required data using the "Type" and "Path" buttons.

Filter lost files by type

Step 3: Recover Lost Data or Files

Preview the files and then click on “Recover” to restore the lost data to another location.

Click "Recover" to restore your lost data.

Conclusion

The above-mentioned Mac won't shut down issue can happen anytime. As an Apple user, you should know the solutions and have valuable data recovery programs like the free Mac Data Recovery software tool. This is the best recovery program with a 100% recovery rate to prevent any accidents and data loss.