How to test a hard drive for bad sectors ?

I have a HDD
It's brand has four letters, I'm not beside it now

Something like HGST

On erasing it my hardware cloning tool tells me it has 300 has sectors

Hard drive tune - gives me all greens

How can I test this puppy properly and prob return for RMA as its brand new
fcekAsked:
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Nick RhodeIT DirectorCommented:
Usually the manufacturer has their own HD diagnostic tools on their support site.

I usually use the tool by seagate or Western Digital lifegaurd to scan for bad sectores.

Also I use crystal disk to test the smart board status to see if there is an issue there.

WD Tools:  http://support.wdc.com/product/download.asp?groupid=613&sid=3

Crystal Disk: http://crystalmark.info/software/CrystalDiskInfo/index-e.html
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JohnBusiness Consultant (Owner)Commented:
HGST is a Hitachi drive but I see recently Western Digital now has this brand. So either Hitachi or WD test programs should do fine for you (agree with the above on this).

I always use the manufacturer's drive test tool.

.... Thinkpads_User
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Gary CaseRetiredCommented:
Download WD's Data Lifeguard for Windows (from the link provided above)

To thoroughly test the drive, do the following sequence (this will take a day or so -- the extended test and write zeroes each take several hours:

Note:   This will destroy any data on the drive -- if that's a problem, just do the first two tests.

->  Do a Quick Test
->  Do an Extended Test
->  Write Zeroes to the entire drive (choose the complete option)
->  Repeat the Quick and Extended Tests

If you get ANY errors, RMA the drive.   If the drive passes all these tests error free, it's a good drive.
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nobusCommented:
normally you can use DFT for that, it supports IBM and hitachi drives
https://www1.hgst.com/hdd/technolo/dft/dftnew.htm
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