Windows 7: DISKPART throwing I/O error at create partition command

Hi,

My laptop doesn't boot from hard disk anymore. So I tried to start system with Windows 7 installation DVD and ran DISKPART.

It recognized disk 0 but when I execute "create partition primary size=80000"
it runs for sometime and displays that it is not able to execute the operation properly due to I/O error.

(I had windows 7 running on that hard disk before).
can somebody help?



thanks
nara

Diskpart is not needed for Troubleshooting Windows 7 Failure to Boot.
Work through the steps in the blue link.

As a last resort you can Clean Reinstall - Factory OEM Windows 7.

Everything you need is in the blue links. You don't need Diskpart.

Hi,

thanks for your reply but I forgot to mention that when i ran diskpart, it showed 465 GB free of 465 GB. doesn't it mean all the contents got wiped out?

thanks

Did you run the Diskpart Clean or Clean All commands which wipe the data?

Do you have data to rescue?

Refer to note at end of step 3 in Clean Reinstall - Factory OEM Windows 7 to look for data to rescue before reinstalling.

Yes, here is what I did:

diskpart

list disk - this showed 465 gb free of 465 gb..

select disk 0

clean

create partition primary size=80000

and result is:

"DiskPart has encountered an error: The request could not be performed because of an I/O device error.
See the System Event Log for more information"

You wiped out your data then. I assume you intended to do so and are reinstalling.

Follow the steps in the tutorial to try Custom install, using Drive Options to create and format your partition.

If this fails then post back any error or exactly what happens, then Test your HD using maker's HD Diagnostic extended CD test.

When I try to install using Install Now option in Windows 7 disc, I get this error:

"This computer's hardware may not support booting to this disk, ensure that the disk's controller is enabled in computer's Bios menu"

Also note that the Format button is disabled in installation screen. If I try to create New partition using "New" button, it fails too.

Enter BIOS setup, check the HD to see if it is listed. Then look nearby for SATA controller setting. Try AHCI first, then IDE Mode to install.

Check also in BIOS Boot order to see if there is an EFI Boot disk listing and where it is set.

Test your HD to see if it is bad.

Boot into free Partition Wizard CD to try creating an NTFS Primary partition for the full disk, click Ok. Now rightclick on partition to Modify>Set to Active, OK. Then rightclick on partition to Check File System, Click OK, Apply steps.

If this works try install to Active partition.

BIOS does show WDD. Let me try to make it ATA instead of AHIC

If that fails download and burn to DVD using Windows Image Burner the ISO file here: WD Support / Downloads / SATA & SAS /

Boot to run a full scan. Then wipe the HD with quick wipe and try install again if it passes.