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Hard drive ST3160021A, error code HD521-2W

I keep getting this error code when trying to start the computer.

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Your hard drive is failing. Back up your data immediately and replace the hard drive. Clean-install Windows.

Click here on how to do a clean install.
Click here to know what u will need on hand..

If the computer will not boot, there are a few things you can do
to try and get data off the drive. Success depends on how badly the drive is damaged. When this is all over, create and implement a backup strategy so you don't lose data again.

General data recovery methods:

*IMPORTANT* - If there is any question that the drive is at fault - it's making noises for instance - and the data is crucial DO NOTHING FURTHER ON THE DRIVE. Every time you spin that drive up you may be destroying data. If this is the case, send the drive to a professional data recovery company like Drive Savers (my preference) or Seagate Data Recovery. General prices run from $500USD on up. Drive Savers recovered all the data on a failed laptop drive for one of my clients and it cost$2,700. He thought it was worth the money; only you know what your data
is worth. I understand that some insurance companies are now covering data recovery charges so check with yours.

Drive Savers -
Seagate Data Recovery Services -

If you don't want to send the drive to a professional data recovery
company, you can try:

1. Pull the drive and slave it in a computer running a working install of XP. Depending on the target drive's characteristics, you may need a drive adapter; i.e., laptop-to-IDE or a SATA controller card, etc. A usb/firewire external drive enclosure works very well, too. Use the working Windows Explorer to copy the data to the rescue system's hard drive and then burn the data to cd or dvd.

2. Often XP will not boot with a slaved drive that has a damaged file system. In that case, boot the target computer with either a Bart's PE or a Linux live cd such as Knoppix and retrieve the data that way. Here is general information on using Knoppix for this:

You will need a computer with two cd drives, one of which is a cd/dvd-rw OR a usb thumb drive with enough capacity to hold your data OR an external usb/firewire hard drive formatted FAT32 (not NTFS). To get Knoppix, you need a computer with a fast Internet connection and third-party burning software. Download the Knoppix .iso and create your bootable cd. Then boot with it and it will be able to see the Windows files. If you are using the usb thumb drive or the external hard drive, right-click on its icon (on the Desktop) to get its properties and uncheck the box that says "Read Only". Then click on it to open it. Note that the default mouse action in the window manager used by Knoppix
(KDE) is a single click to open instead of the traditional MS Windows' double-click. Otherwise, use the K3b burning program to burn the files to cd/dvd-r's. - Bart's PE Builder

If you can't get data off by attaching the drive to a working XP system or by booting with Knoppix, then data recovery software will in all probability not work because the hard drive is too physically damaged.

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Posted on Feb 04, 2008

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To solve this problem you can you do the following:
Start the PC and keep pressing the F10 key so that you can enter into the BIOS Setup. There you run the self test hard disk, be patient, it will take time. After it finishes, press F10, select the option Save settings and exit. Then while booting the system press F8 and select Last known good configuration. If still the problem persists, Restore your PC with the Restore Disc.

Posted on Feb 04, 2008

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If this error is coming from the PC Doctor or When the OS (WindowsXP, if it is) then the chances are that your hard drive is failing. Back up your data immediately and replace the hard drive. Remove the HDD and connect it as a slave into another system and copy the data. Cheers - Parveen

Posted on Feb 04, 2008

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1 Answer

I'm trying to connect Seagate ST3160021A my laptop using a usb 2.0 adapter. Laptop won't see it regardless of jumper setting. Other drives work fine, so it's not the adapter.

this could be a driver issue
here is a general look at the drivers and how to update them
if your computer came with a motherboard disc the drivers could be on it
click start control panel administrive tools ,computer management ,device manager look through all of your devices if you see a yellow question mark?or exclamation mark ! or red x
right click to reinstall drivers or
if you can see your usb but its not working
ports(com&lpt)right click update driver hope this helps

Apr 29, 2011 | Seagate Barracuda 7200.0 (ST3160812AS) 160...

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Its perfect but its aging it is 2004 built. When or should I upgrade drive?

Welcome to FixYa!

As for my personal experience its up to the usage of the drive (how much you download and fill the space and then delete and refill the space )
Each and every part of these SATA hard drives are made to be friction free , but if there is 99.9% percent friction free factor involved that 0.01 percent can defect the hard disk very slowly and gradually like a termite .but that's when your hard drive start making abnormal voices (hen is the time to upgrade)
cause the media of the hard drive starts to be defective or malfunctioning due to voltage, random restarts, etc

if you always take good care of it it wont trouble you . i have a IDE hard drive( 5mb space) for almost 15 years that works fine,when i put it back.:)
but due to technological advancement you will upgrade it today or tommorrow or may be a year . but my advice is always check degfregmentation for every drive after a certain time period .
here is a TIP for major hard drive errors

Best Regard

do comment if it helped you or not !

Apr 11, 2011 | Seagate Internal Hard Drives: ST3160021A...

1 Answer

Acer 5050 keep getting error 0200 and says operating system

Hi, error 0200 it's just a generic code which the people from Acer dont even know. It's defenitely has something to do with the hard drive. I suggest you remove it (it's easy) and connect it to another computer and backup your data. That code could mean a "deleted partition" or Master Boot Record failure (software related) or something inside your hard drive (hardware related) so first do a backup like it told you and then try reinstalling the OS. If you still have the problem download some software on the internet such as mhdd which can test the hard drive to make sure but please backup as soon as you can. Dont try to use "chkdsk" or any tools BEFORE you backup because they stress the hard drive and can make things really difficult later to backup. They might even damage the hard drive. I hope this helps.

Apr 27, 2010 | Acer Aspire 5050 Notebook

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I'am not able to for mat my hard drive

Hi.formatting a hard drive means you will wipe it clean of any files ect, you have on it. 
1 On your pc go to the Start .
2 Right click on My Computer and select Manage.
3 Under Storage click on Disk Management.
4 Find your hard disk in the list and right click on it and select Format.
5 Click on Perform Quick Format if you want.
6 Click OK and confirm your OK with losing all data on the drive.
7 Now your done.
Hope this helps.
Regards Bill

Feb 26, 2010 | Seagate Internal Hard Drives: ST3160021A...

1 Answer

My dell inspiron 1720 keeps rebooting. Pressed

Yes. You'll need to replace the hard drive with that error code.

No matter you can't use that computer without replacing the hard drive.

If you have a warranty for the computer contact tech support for your dell, give them the error code you have
and they will immediately replace your hard drive.

Re seating the hard drive won't fix it.

Hope this helps!

Feb 21, 2010 | Dell Inspiron 1501 Notebook

1 Answer

I installed a new operating system and the computer would not boot up. It get to please wait, on installation i am installing windows xp home addition

Go to BIOS by press DEL, set your hard drive 1st defult run then save it. After try to run your pc. if not working then formet it again , becouse your OS no install properly.

Jan 30, 2010 | Seagate Internal Hard Drives: ST3160021A...

1 Answer

HDD Has been stop be detected in my computer,PLZ HELP!!!Somebody!

try plugging the hard drive into the other ide port on the motherboard

Oct 27, 2008 | Seagate Internal Hard Drives: ST3160021A...

1 Answer

Format Error


Most "Format Error" messages are generated because of hardware fault. This unfortunately would mean that your ST3160021A is no longer usable.

Alternately, you can try temporarily installing it to a 2nd PC and perform disk utilities on the said HD. Things you can try are partitioning or deleting existing partition, formatting and scanning to check for any bad sectors. You can install the ST3160021A as a primary slave, secondary master or even using an external USB to IDE/SATA adapter such as a VANTEC CB-ISATAU2 SATA/IDE to USB 2.0 Adapter.

Once you have verified that no sectors are damaged and that the HD checks out, you can reinstall in the original PC and proceed with Windows installation. If on the other hand errors do occur even with using the 2nd PC, you have confirmed that indeed the HD is defective and would require a replacement.

Hope this be of help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Jan 21, 2008 | Seagate Internal Hard Drives: ST3160021A...

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