ok so my sister bought a 1tb wd passport looonng time ago and the warrenty is expired… but the problem is that sometime i get an i/o device error trying to transfer a big a file over to the passport and so i reformat it and it say it success but when ever i try to transfer like 2gb or more file onto the passport to slow down my whole computer sooooo much… and the transfer just freeze… please help (and i didnt know if your suppose to reformat the drive or not)
To confirm if the drive is working properly you can run an Extended Test running DLG: How to test a drive for problems using Data Lifeguard Diagnostics for Windows
ok im running the diagnostic soo if it fixes the problem ill click the star for u 
ty for replying
well i ran the extended test and i got this:
| Test Option: | EXTENDED TEST |
| Model Number: | WD My Passport 071A |
| Unit Serial Number: | [Deleted] |
| Firmware Number: | 2019 |
| Capacity: | 1000.18 GB |
| SMART Status: | FAIL |
| Test Result: | FAIL |
| Test Error Code: | 08-Too many bad sectors detected. |
| Test Time: |
20:42:59, August 03, 2012 |
how do i fix this?
