To disable the beeping sound on your Hikvision NVR when a hard drive is removed, follow these steps:
- 
Connect to your NVR in a web browser. Use the NVR’s IP address and login credentials to access the web interface. 
- 
Navigate to the “Configuration” menu. 
- 
Select “Event” from the menu options. 
- 
Choose “Basic Event” from the submenu. 
- 
Click on “Exception” in the list of event types. 
- 
Identify the exception that is causing the beeping sound. Look for the exception that corresponds to the hard drive removal event. 
- 
Uncheck the “Buzzer” option under the “Normal Linkage” section. This will disable the beeping sound for that particular exception. 
- 
Click “Save” to apply the changes. 
