Digital Video Recorder User Manual72Step2: click Refresh button to refresh the disk information of the list box; set the property of the disk then click Apply button to save the settingStep3: checked a hard disk, click Format button to star format.Note: all recorded files in the hard disk will be lost after formatted.6.1.8 UpgradeAt present, it only supports USB update. Get the firmware from your vendor when there is a new firmware version, and make sure it iscorresponding with the DVR. User can check the USB information in Disk manager.6.1.9 LogoffClick Log off icon, a log off dialogue box will popup, click OK button, the device will log off. If user wants to log in again, click icon toenter into user name and password to relogin.6.1.10 DeviceNote: At present, the version is not support this function