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When I reinstall Windows XP, by mistake I deleted all five partitions. I dit not format them yet though.

So how can I recover this? When I attach the hard disk to another PC it just sais that the partition is unformated would you like to format it.

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also – barlop Jul 11 '15 at 14:02
up vote 2 down vote accepted

Use ralford's suggestion together with TestDisk :

TestDisk is a powerful free data recovery software! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error (such as accidentally deleting a Partition Table). Partition table recovery using TestDisk is really easy.

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Hey Thanks, Both TestDisk and Partition find and Mount work – user20996 Jan 30 '10 at 7:45

Partition Find and Mount should be able to recover your partitions.

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And as a bonus, it's free! – fretje Dec 11 '09 at 14:47
To clarify: there are "demo" vs Pro version, but the demo has all the features and will let you recover as much data as you want. The only limitation of the demo is the transfer rate away from the old drive. If you have a failing drive that you've cooled down to get it working long enough for data recover, you may be limited to a few minutes and that transfer rate may be important. But otherwise you can probably get by on the free version. – Joel Coehoorn Jan 22 '10 at 17:39

If you are trying to recover data, try putting the drive into a USB converter and access it as a removeable device from your PC or Laptop's USB port. For instance, use an IDE to USB converter, or SATA to USB converter (not sure if your drive is PATA or SATA). I've successfully used this method to recover files on broken bootable drives on numerous occasions.

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I have used an SATA to USB adapter along with HDD Regenerator with some success in the past. Good luck.

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how to use it with hddregenerator ;can you post it in detail? – BlueBerry - Vignesh4303 Aug 13 '12 at 11:06

protected by slhck Jul 17 '13 at 11:41

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