The Western Digital Data Lifeguard Diagnostics program is a disk application tool under the Windows platform. It can identify, diagnose and repair disks. It is mainly suitable for Western Digital FireWire, EIDE, and USB drives. After opening DLG, we can see the serial number and model of our hard disk on the main interface. After selecting the corresponding drive, a new window with four options will appear. These four options are QUICK TEST (mainly used for testing Perform a simple test on the disk to check whether the disk supports SMART technology), EXTENDED TEST (conduct a comprehensive test on the disk to check the integrity of the disk information and whether there are bad sectors, which takes a long time), WRITE ZEROS (for disk data Quick clear, use with caution), VIEW RESULT TEST (view the results).
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