76 Lock Screen and SecuritySettingsDevice Administration Advanced Security SettingsManage your device administrators and applicationinstallation privileges.Use these options to configure advanced securitysettings.1. From a Home screen, tap Apps >Settings.2. Tap Lock screen and security > Other securitysettings > Device administrators.3. Tap Android Device Manager to allow it to lockor erase a lost device.Credential StorageManage your security certificates. If a certificateauthority (CA) certificate gets compromised orfor some other reason you do not trust it, you candisable or remove it.1. From a Home screen, tap Apps >Settings.2. Tap Lock screen and security > Other securitysettings for the following Credential storageoptions:• Storage type: Select a storage location forcredential contents.• View security certificates: Display certificatesin your device’s ROM and other certificatesyou have installed.• Install from phone storage: Install a newcertificate from storage.• Clear credentials: Erase the credentialcontents from the device and reset thepassword.1. From a Home screen, tap Apps >Settings.2. Tap Lock screen and security > Other securitysettings for the following Advanced options:• Trust agents: View or disable trusted agents.• Pin windows: Pin an app on your devicescreen.• Usage data access: View the applications thatcan access your device’s usage history.• Notification access: View the applicationsthat can access notifications you receive onyour device.Note: To view Trust agents, set up a screen lock (pin,password, or pattern). For more information, seeSet a Screen Lock.