Mac is stuck on the login screen, no matter how you click it, it is useless

This should be your process shut down by you. Click Run, then enter cmd, and then type, and you can see the desktop. Recover with 360 and you'll be fine. I've had similar occurrences.

The cause of the problem is not a proper shutdown, or a normal shutdown (after performing a shutdown, the computer has been in a shutdown state, and it still does not turn off for 10 minutes), usually a few days after the system is reinstalled.

Causes problems with Mac hard drive memory storage and needs to clear the memory storage database.

1. Immediately after turning on your Mac, press and hold the Command+R key on your keyboard, which will enter your Mac's recovery mode.

2. After entering the macOS interface, click on the Disk Utility inside.

3. Back up your computer's data to your mobile disk through Disk Utility.

4. Shut down >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >&

First enter ** in the diagram (to enter the cache directory), then enter mv/mbr_cache.mbr cache-old.

5. After completing the above operation: turn off the machine and then turn on the old land machine to re-enter the normal boot process, this time the boot will take longer than normal, because the cache is cleared, about 3-5 minutes.

1. Immediately after powering on, press and hold the Command + R keys to enter recovery mode.

2. Then select Disk Utility.

3. Back up your computer's data to your mobile disk through Disk Utility.

4. Power off > Reboot > Immediately press the Command + V keys to enter the ** interface.

5. Shut down > Reboot > Immediately press the Command + R keys to enter the macOS recovery interface, find the terminal tool in the upper left corner, and execute the commands in the following order in the terminal command line (purpose: clear the database cache).

6. After completing the above operations: redo it to enter the normal boot process, this time the boot will take longer than normal, because the cache is cleared, about 3-5 minutes.

I also encountered such a problem today:Because I just used the mac,Today the Mac suddenly crashed,No mouse moves,So I forced restart,Enter the reboot interface and select the user has no response,Check a lot of forums,No result,Almost all say to reinstall the system。 In fact, according to the habit of using the Windows system, selecting the user on the login interface is a stand-alone mouse, but it is indeed right-clicking on the Mac.

I right-click on a user, and the input box for entering the password appears, and after entering the password, I press the enter key to enter the system.

To plug in the power supply, the power indicator is yellow at this time, press and hold the shift+control+option+power button in the shutdown state, about 15 seconds -20 seconds, the charging light will flash and turn green, then it will be normal to boot into the system.

Press and hold option at the same time; command；p；r；Press it immediately when you restart it until your computer restarts, and you'll hear a startup sound again and release the keys. Don't let go after a start-up sound, let the machine restart three times and let go after the third time.

There's really no way to try it.

Something went wrong with Koxun's computer. It is also possible that the network is not good.