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It is very important that you know how to protect your information and the information others share with you. One simple way to do this is to lock a computer, even if only stepping away for a moment. You can also use the password protect screen saver feature to protect your files.

Locking Screen Savers

Windows 7

  1. Click Start > Control Panel.
  2. Type "screen saver" in the Search box and choose "Set screen saver password". 
  3. Choose a screen saver, if you have not done so.

  4. Select the "On resume, display logon screen" check box.

  5. Set a time when you want the screen saver to start, and then click OK. 

    1. Choose a time that's not long enough for an unauthorized person to use your computer, but not so short that if you stop working at your computer for a moment, the screen saver locks it.

 

 

Windows 8

  1. Swipe in from the right edge of the screen (or if you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up) and tap (or click) on the Search icon. 
  2. Type "power options" and tap or click on "Settings". 
  3. Tap or click on Power Options.
  4. In the dialog, tap or click on "Require a password on wakeup". It should default the Password protection on wakeup setting to require the password. 
    1. If on a laptop, it is recommended that you also set your computer to sleep when you close the lid (usually a default setting).
  5. Make sure your computer is set to sleep after a period of inactivity. 
    1. Tap or click on Power Options to go back a step, and then tap or click on "Change plan settings" to the right of whichever power plan is selected.

    2. Next to "Put the computer to sleep", choose the length of the period of inactivity before the computer will go to sleep. 

    3. Choose a time that's not long enough for an unauthorized person to use your computer, but not so short that if you stop working at your computer for a moment, the screen saver locks it.

  6. Tap or click Save changes if you have made any.

 

Mac OS

Apple Documentation: https://support.apple.com/kb/PH21781?locale=en_US

  1. Choose Apple menu > System Preferences.
     
  2. Click Security & Privacy.
  3. On the General tab, check "Require password ... after sleep or screen saver begins." 
  4. Set the time period drop down to your desired amount of time.

    1. Choose a time that's not long enough for an unauthorized person to use your computer, but not so short that if you stop working at your computer for a moment, the screen saver locks it.

 

Locking the Computer

Windows 7

  1. Press CTRL+ALT+DELETE on your keyboard.
  2. Click Lock Computer in the Windows Security dialog box. 

OR

  1. Press the Windows logo key + L.

Windows 8, 10

  1. Press CTRL+ALT+DELETE on your keyboard.
  2. Click Lock Computer in the Windows Security dialog box.

OR

  1. Press the Windows logo key + L.

Mac OS

Apple Documentation: 

To require a password after your computer has gone to sleep, follow the directions above for locking a screen saver on a Mac.

Tips from CNET: http://www.cnet.com/how-to/7-ways-to-lock-your-macbook/

To lock your Mac: 

  1. Choose Apple menu > System Preferences. 
  2. Click Desktop & Screen Saver.
  3. Click Screen Saver.
  4. Click Hot Corners... 
  5. Set one of your corners to "Put Display to Sleep".
  6. Click OK.

To set your Mac to log out when not in use:

  1. Choose Apple menu > System Preferences.
  2. Click Security & Privacy, and then click General.
  3. Click the lock icon at the bottom left to unlock it, and then type an administrator name and password.
  4. Click Advanced.
  5. Check “Log out after ... minutes of inactivity.” 
  6. Set the amount of inactivity time before the system automatically logs out. 

    1. Choose a time that's not long enough for an unauthorized person to use your computer, but not so short that if you stop working at your computer for a moment, the screen saver locks it.

  7. Click OK.
  8. Click the lock icon again to prevent further changes.


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