How can I repair bad sectors?


#1

Hi , I’ve got a 1T my passport USB 3 and im using it for about 2 years without any problem , but since 3 months ago I got that my hdd gets disconnected and reconnected when im coping or cutting a file from it to my PC or laptop or what ever device it is , I asked and searched a lot till I used HD Tune Pro to see if all the Health Status were OK or was there a problem with it , as it was expected I found out that so many options were either red which meant failed or yellow which meant warning , so I used Hard Disk Low Level Format Tool and format it and it took about 28 hours ( forgot to say , the transfer speed is so so so low its about 4 mb/s )

after that I checked it with HD Tune Pro again to see if the problems were solved or not , I saw that so many of them got solved and were OK except these 2 :

1.Reallocated Sector Count (Description : Number of retired sectors : 561 - Status : The drive has damaged sectors)

2.Reallocated Event Count  ( Description : Number of sector replacement operations : 58 - status : OK)

the first one  was red which as I said meant failed and second one yellow which meant warning

so I searched and searched and searched again to see how to solve bad sectors and I found that HDD Regenerator is a good thing as they said , so I got it and used it , there are there options available when you chose your drive:

1.Prescan (Show bad zones)

2.Normal Scan (with / without repair)

3.Version info 

4.Show Statistics

so I chose the first one and started scanning and after a delay my hard got automatically disconnected and after a while connected again , I continued the process and saw that after the disconnection and reconnection the program had found a bad sector , I continued some more times and saw that every time that a new bad sector is detected the hard reacts that way so I thought maybe its better to go for second option and normal scan it so I chose it and there were 3 options there :

1.scan and repair

2.scan , but do not repair ( show Bad Sectors)

3.Regenerate All Sectors in a range (even if not bad)

I gone with the first one and the same thing as prescanning happened so I thought maybe my drive gets hurt from this much connecting and disconnecting and I stopped the process , I gone with the 3rd option but it takes 350 hours ( LOL) I don’t really know what to do to repair this bad sectors 

I’d appreciate to get your help 

and something else , is this low transfer speed because of bad sectors or there is a problem with the speed of spinning ?

I used Western Digital Data Life Diagnostics and in the Quick test it fails and also it is shown fail in the smart status too before testing it , the error that appear when quick test fails is :

06-Quick Test on drive 2 did not complete! Status code = 04 (Unknown failed test element), Failure Checkpoint = 96 (Unknown Test) SMART self-test did not complete on drive 2!

Should I go any further for testing I mean , Extended test and Write Zeros?


#2

Aryan432,

Correcting bad sectors may or may not be possible depending on the type of damage (Logical vs. physical). Logical bad sectors may be repaired by means of software, however, a deep-clean (Write zeros) may be more effective at repairing both physical and logical sectors. If a disk undergoes this process and still has bad sectors, then it would need to be replaced under warranty.

For additional information related to how to write zeros into a disk drive, please visit the following link:

http://wdc.custhelp.com/app/answers/detail/a_id/940/


#3

i faild trying to write zeros (quick or full). Also failed the quick and extended test. 

What are my choices right now?