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What is loginwindow on Mac?

By Junaid, maker of Taskglass · Last reviewed

Handles logging in and out, the lock screen, and keeps your user session running.

loginwindow shows the login screen, starts your session after you log in, handles the lock screen and the Force Quit window, and manages logging out, restarting and shutting down. It keeps running for your whole session even though you don't see it.

Category
macOS system
Made by
Apple
Safe to quit:
No

Shown in Activity Monitor as loginwindow

Why is loginwindow using so much CPU or memory?

  • Right after login, while your session and login items start
  • Fast user switching, or locking and unlocking the screen
  • An app that blocks logging out or shutting down

What to do

  1. 1Wait a minute after logging in
  2. 2Turn off login items you don't need in System Settings > General > Login Items & Extensions
  3. 3Restart your Mac

Safe to quit? No.

Quitting loginwindow immediately logs you out and closes all your apps.

Typical usage

Rough ranges on Apple Silicon Macs. Yours will vary.

CPU
Near 0%
Memory
30–150 MB

Related guides

Related processes

Part of the Taskglass Process Library

See it live in Taskglass.

Taskglass shows what loginwindow is doing on your Mac right now, explains it in plain English, and tells you if it's safe. It does the same for 213 other processes.