I stop my computer from sleeping by going into System Preferences > Energy Saver > Power Adapter and sliding "Turn display off after:" to 'Never'.

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But after a long time the mac screensaver turns on and I have to type my password to get back into the computer.

How do I stop that from happening?

I want my computer to forever stay as I left it, and not start screensavers or log me out or anything.

  • The only solution I have found is to use an app like Caffeine or Amphetamine to keep the machine awake "forever." Jan 24, 2019 at 13:08

3 Answers 3


From the Apple menu, choose System Preferences…, then click Desktop & Screen Saver. Click the Screen Saver tab. Then set Start after: to: Never

Screen Saver Preferences

If the option is grayed out:

The system administrator has set the screensaver timeout. You can't change it without removing the profile, which will probably cause you to lose network access.



You can turn off the password requirement to quit the screensaver in System Preferences > Security > General.

Then your Mac will wake from sleep/screensaver with just a nudge of the mouse/touchpad, or a keypress.

Bear in mind that without this password protection, anyone can access your MacBook when it is unattended, or if they steal it. The password requirement does not log you out: it just locks the screen.


Go to: System Preferences > Desktop/Screensaver then on the bottom left click "Start after....' and change it to 'Never'

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  • What to do if the Start after button is greyed out and don't do anything on clicking.
    – user318572
    Jan 24, 2019 at 12:55
  • That's a very good question. If there's not a simple explanation here, that might make a great stand alone question if you want to ask it @user318572
    – bmike
    Jan 24, 2019 at 13:06

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