Ctrl + Alt + Delete → then choose Lock (on many distros) Chrome OS (Chromebook) Shortcut: Search Key + L (Search key is where Caps Lock usually is)
Ctrl + Alt + L (or Super + L depending on version)
Move mouse to configured corner → Screen locks. shortcut to lock system
This instantly locks your screen and returns to the login screen. Works on all modern Windows versions (7, 8, 10, 11).
Most Common Shortcut: Windows Key + L
Launcher Key + L Quick Summary Table | OS | Shortcut | |----|----------| | Windows | Win + L | | macOS | Control + Command + Q | | Linux (most) | Super + L | | Chrome OS | Search + L | Pro Tip On Windows and Linux, you can also create a desktop shortcut or assign a different key combination using AutoHotkey (Windows) or custom keyboard shortcuts (Linux). For example, Ctrl + Alt + L can be mapped to lock screen if your default shortcut isn't working.
Control + Shift + Power (or Control + Shift + Eject on older Macs with optical drives) Linux (Most Desktop Environments) GNOME / Ubuntu / Pop!_OS / Fedora: Super Key (Windows Key) + L Ctrl + Alt + Delete → then choose
Locks your Mac instantly.
