Can't find an option to lock my workstation I'm trying to lock my workstation but when I look for one or Google for any other buttons/keyboard shortcuts, either none of them work or they are not present on my screen.

I don't see any options besides logoff, shutdown, restart, standby. Resuming from standby does not lock the workstation either.

I've been Googling for like half an hour now and nothing works.

How can I lock my workstation without logging off completely?
In macOS High Sierra (10.13) there is a 'Lock Screen' option built in the Apple menu. And finally a shortcut ctrl + cmd + Q :-)



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Old solution for me:

Or you can get a Keychain Lock in your menubar.


Open Keychain Access
Go to 'Preferences'
Activate 'Show keychain status in menubar'
There appears a lock in your menu bar. 
Click on it and choose 'Lock Screen'.