66 Lock Screen and SecuritySettingsDevice AdministrationManage your device administrators and applicationinstallation privileges.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 lock orerase 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 CAcertificates in your device’s ROM and othercertificates you have installed.• Install from phone storage: Install a newcertificate from storage.• Clear credentials: Erase the credentialcontents from the device and reset thepassword.Advanced Security SettingsUse these options to configure advanced securitysettings.1. From a Home screen, tap Apps >Settings.2. Tap Lock screen and security > Other securitysettings for the following Advanced options:• Trust agents: Perform selected actions whentrusted devices are connected.• Pin windows: Pin an app on your devicescreen, preventing access to other features ofyour tablet.• Usage data access: View the applications thatcan access your device’s usage history.• Notification access: View the applicationsthat can access notifications you receive onyour tablet.Note: To view Trust agents, set up a screen lock (pin,password, or pattern). For more information, seeSet a Screen Lock.