cannot format external hdd

  bumpkin 15:42 25 Aug 12


I have a 1Tb Hitachi external drive for backing up.A few days ago I used format to wipe all data so I could start afresh. The drive shows up OK but says it is not formatted. several attempts to format but message (windows is unable to format this drive) Can anyone help please.


  Nontek 15:45 25 Aug 12

Only a guess, but perhaps if you right-click on the drive you may get a format option from within the drive itself.

  bumpkin 16:33 25 Aug 12

Thanks but that does not work.

  Nontek 16:43 25 Aug 12

I should have said - click on Properties after the right-click - you should then see various tabs including one marked Tools, then within Tools you should get the option to check drive for errors.

  bumpkin 17:01 25 Aug 12

Thanks again, I have tried this but when I try to start check for errors nothing happens, the window just vanishes.

  bumpkin 20:47 25 Aug 12

Still trying to do this. Any ideas please.

  Fruit Bat /\0/\ 20:51 25 Aug 12

CAn you see the drive in disk management ? try and format the drive there.

  bumpkin 21:23 25 Aug 12

I can see it but it just wont format, not an old thing and only used a few times. I am trying full format at the moment but takes a long time. Thanks Ray

  rdave13 21:34 25 Aug 12

It will take a long time to do a full format on a TB hard drive. So it is formatting?

  rdave13 21:42 25 Aug 12

1,024 B (bytes) = 1KB (kilobyte) 1,024 KB (kilobytes) = 1 MB (megabyte) 1,024 MB (megabytes) = 1 GB (gigabyte) 1,024 GB (gigabytes) = 1 TB (terabyte) although manufacturers like to call 1 TB as 100 GB equivalent for obvious reasons.

  bumpkin 22:34 25 Aug 12

It took about 2hrs and then said "Windows was unable to complete the format"


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