Unable to copy / backup PST

1. my pst size is 15 gb - i lost track of its size and forgot to maintain it under 2gb
2. I use outlook 2010

I could not copy the mails to another pst / server or copy the pst to another drive in the computer or . to the external hard drive. Data file check in outlook is running for the last 10 days and does not seem to end.

I have tried the following
1. Run scan pst - did not work. ended with the error after phase 1(in use by other applications error) - but it was not mapped in outlook and outlook was not running.
2. Copy it to external hard disk through various means - did not work (copied upto 12 gb and then failed with hard disk error message)
3. Compact tool in Mail - does not work
4. Zip and copy the file - does not work (same error as copy, went upto 9 gb and then failed)
5. I have tried to copy the mails folder by folder to exchange server (i have 25gb space in the server) - it worked for few folders, then it stopped saying pst is not available or sometimes that windows search aborted and hence needs to restart the outlook
6. i have disabled windows search and tried #5, did not work as well

Based on the error, it looks like a hard disk error - ran the chkdsk through command prompt, it was running forever and i had to abort it after the night with 0% progress made.

Help: I need to recover the mails in the pst - what is my best option?
phariharan650Asked:
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Seth SimmonsSr. Systems AdministratorCommented:
if you don't have a backup and chkdsk isn't working, might be looking at a data recovery service
3rd party tools might be able to do something but if the drive is having mechanical issues, likely won't work or have much of any data intact
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akahanCommented:
Try Spinrite.

http://www.grc.com
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rindiCommented:
Test the disk using the manufacturer's diagnostic tool. If it finds unrepairable errors, send the disk to a professional recovery agency like Gillware, if the data is worth the price for recovery. You can download the diag from the disk manufacturer's site, or boot from the UBCD which includes them:

http://ftp.cc.uoc.gr/mirrors/linux/ubcd/ubcd533.iso

https://gillware.com

If the diagnostic tells you the disk is fine, or if it can repair minor errors and after the repair the disk is fine when diagnosed a further time, run chkdsk /f /r again, and let it run for as long as is necessary for it to fix all the file-system errors. When that is done try copying the pst file off again, and if necessary, also run the pst fix again, also allowing it as much time as it needs.
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EirmanChief Operations ManagerCommented:
You should try copying the file to another drive with UNSTOPPABLE COPIER (Free).
It ignores physical disk errors and file errors when copying.

I've used it several times and it really does work if you give it enough time.
It may appear to freeze at a certain point and then resume.
http://www.roadkil.net/program.php?ProgramID=29
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