Click the lock at the bottom and enter your password (or use Touch ID) to make changes.Go to System Preferences > Security & Privacy, and click the ‘ Privacy‘ tab.Open Deeper and click OK on the warning window.Download Deeper for macOS Monterey and install the app on your Mac.How to change the startup screen on macOS Monterey The below tool supports Intel-based Mac as well as Apple Silicon Macs with an M1 chip. Now let’s see how to change the login screen background on your Mac running macOS Monterey 12.0 or later. It can get the task done in a few clicks and without any complicated steps. The trick involves using a third-party app, ‘Deeper’ by Titanium Software to change the background image of the login window. However, there is a workaround you can use to change the login screen on macOS Monterey. While you can’t change the lock screen in Monterey on Mac, which boasts the same background image as your desktop. The login screen appears when you start up (boot into Mac) or log out of a user account whereas the lock screen appears when you lock your Mac. Login Screen vs Lock Screen – One shouldn’t confuse the login screen with the lock screen as both are different. This is a pesky limitation more so for users who like to customize Mac login screen with their favorite wallpaper. Similar to Big Sur, macOS Monterey provides no native option to set a custom background for the login screen. Apparently, both the Login screen and Lock screen show the same background that you set as your current desktop wallpaper. By default, a pink and purple background appears on the Login screen, Lock screen, and Desktop on macOS Monterey.

How to change mac background login