This article applies to: Secure Your Computer and Mobile Device
Dec 09, 2017 Turn off your Mac. Remove the battery. Hold down the power button for 5 seconds. Replace the battery. Turn on your Mac. Turn off your Mac. Restart your Mac while holding down the Shift key. When you see the login window, let go of the Shift key. Restart your Mac and see if the problem is resolved. Single-User Mode. Turn off the computer. How to lock screen on Mac OS X? Please support me on Patreon: With thanks & praise to God, and with thanks to.
When you leave your computer, it’s best to start a screen saver that can only be turned off with a password. You should set up a screen saver that will start after your computer has been idle for a set interval (15 minutes or less).
![Screen Screen](/uploads/1/1/8/5/118544262/112431037.jpg)
You can also lock your screen manually using a Hot Corner.
How to Set Your Computer to Lock Your Screen Automatically
- From the Apple menu, choose System Preferences.
- Click Desktop & Screen Saver.
- Click Screen Saver, and then use the slider to choose 15 minutes (or less).
- Click Show All to go back to the main System Preferences window.
- Click Security, and then click Require password to wake this computer from sleep or screen saver.
- Close the System Preferences window.
When your computer has been inactive for the set interval, the screen saver starts. Your password is required to start using the computer again.
How to Set Up a Hot Corner to Lock Your Screen Manually
Next, set up a Hot Corner so you can quickly activate the screen saver when you leave your computer. Explorer for macbook.
- From the Apple menu, choose System Preferences.
- Click Desktop & Screen Saver.
- Click Screen Saver, and then click Hot Corners.
- Click the list next to the corner of the screen you want to use as a hot corner and select Start Screen Saver, and then click OK.
- Close the System Preferences window.
![Cool lock screen for mac Cool lock screen for mac](/uploads/1/1/8/5/118544262/459709564.jpg)
Lock Screen Mac Sierra
How to Lock Your Screen Manually
Mac Lock Screen Image
If you've set up a Hot Corner using the previous procedure, you can use this procedure to lock your screen without waiting for the screen saver to start. Lenovo s10 2 drivers.
- Move your mouse to the corner you set up as your Hot Corner.
The screen saver starts. Your password is required to start using the computer again.
Lock Screen For Mac Mini
Hi, Chris -
Your description of the screen sounds like what is shown in the pic in this Apple KBase article -
http://docs.info.apple.com/article.html?artnum=106482
If so, then the firmware password function has been invoked. If you have not yet tried, try clicking the righthand button without entering anything in the password entry box.
Unfortunately, if you can not get past it, and it's real, you will not be able to boot the machine to any disk or volume unless you know the required password. It is a reasonably serious level of security, originally directed toward owners of portable machines.
There is a way that such a password can be disabled. For reasons of security, even if we do know the solution we do not post it in these forums - since these forums are accessible by anyone, even by those who have not registered, posting the solution could help nefarious types gain unauthorized access to machines. To find out how to do it, contact Apple's Tech support, or an AASP (Authorized Apple Service Provider).
Your description of the screen sounds like what is shown in the pic in this Apple KBase article -
http://docs.info.apple.com/article.html?artnum=106482
If so, then the firmware password function has been invoked. If you have not yet tried, try clicking the righthand button without entering anything in the password entry box.
Unfortunately, if you can not get past it, and it's real, you will not be able to boot the machine to any disk or volume unless you know the required password. It is a reasonably serious level of security, originally directed toward owners of portable machines.
There is a way that such a password can be disabled. For reasons of security, even if we do know the solution we do not post it in these forums - since these forums are accessible by anyone, even by those who have not registered, posting the solution could help nefarious types gain unauthorized access to machines. To find out how to do it, contact Apple's Tech support, or an AASP (Authorized Apple Service Provider).