HIKVISION DS-7600NI-Q1 Series User Manual page 100

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 5-28 Locked File Management
Figure 5-29 Export
Figure 5-30 Export- Search Result
to change it to
99
to unlock the file
.