PRINT TEST RESULTS - Test results can be printed with this option.VIEW TEST RESULTS - You can see the results of the test you just performed.NOTE: Please make sure that you have selected the correct drive to perform this function on as once ran, no data will be recoverable. If you no longer need any data from your drive and would like to start over, run this option to set your drive to an as new condition. This option used when your data is no longer usable or recoverable. WRITE ZEROS TO DRIVE - The Write Zeros option, wipes all data off your drive.Western Digital recommends that you have a current backup of your data). (Please note: Although this option is safe and does not alter the data on your hard drive, some data loss may occur, depending on the errors found and the errors corrected. EXTENDED TEST - This option checks your drive thoroughly and it can repair any correctable errors.(Please note: Although this option is safe and does not alter the data on your hard drive, Western Digital recommends that you have a current backup of your data). QUICK TEST - This option tests your drive quickly for any major physical problems.SELECT DRIVE - Always choose this option first, as it determines which drive you will be working on.At DOS prompt type dlgdiag5.exe to run the program.Make sure that your boot order in your Bios is set to boot from the USB drive first. Create a DOS bootable USB following these instructions.

Data lifeguard diagnostic for mac