HIKVISION DS-7604NI-KI/W User Manual page 88

In the File Management interface, you can also click
and the file is not protected.
Lock File when Export
Step 1 Enter Export setting interface.
Menu > Export
Step 2 Select the channels you want to search by checking the checkbox to
Step 3 Configure the record type, file type start/end time.
Step 4 Click Search to show the results.
Network Video Recorder User Manual
Figure 5-23 Locked File Management
Figure 5-24 Export
to change it to
87
to unlock the file
.