Network Video Recorder User Manual 
88 
 
Figure 5. 28 Locked File Management 
 
In the File Management interface, you can also click    to change it to    to unlock the file and the file 
is not protected. 
 
  Lock File when Export 
Steps: 
1.  Enter Export setting interface. 
Menu > Export 
 
Figure 5. 29 Export 
 
2.  Select the channels you want to investigate by checking the checkbox to  . 
3.  Configure the record type, file type start/end time. 
4.  Click Search to show the results.