2 edit user, 3 delete user, Edit user – QNAP Security VioStor NVR (Version: 3.3.2) User Manual
Page 150: Delete user

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6.5.2
Edit User
Select a user on the list and click ‘Edit’. You can change the password; assign the rights of
system administration and camera access to the user. However, the user name cannot be
changed.
6.5.3
Delete User
To delete a user, select the user on the list and click ‘Delete’. Click ‘OK’ to confirm.
Note:
The system administrator (admin, supervisor, sysmgr) cannot be deleted.