Securwise 4channel SW1004HVST keeps beeping because its hard drive is full. In order to fix the issue, connect the device to PC using the USB cable and transfer the videos to your computer.
If your computer doesn't recognize the device automatically, press Windows + R key combination, type devmgmt.msc and click OK. Expand the Universal Serial Bus controllers list, right-click on the driver and select Uninstall. After that, reboot your PC, connect the device using the cable and press Scan for hardware changes icon from Device Manager. Windows should automatically find and install the driver.