harddisk recovery

harddisk is not opening and showing error

"Data Error (Cyclic Redundancy Check)"

how to recover files
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John HurstConnect With a Mentor Business Consultant (Owner)Commented:
There are two early approaches to this:

1. Boot with another CD/DVD and see if any data at all can be read off. Sometimes it can.
2. Use SpinRite (grc.com) or Recuva or like product to try to read and recover the data.

Then, if these all fail, look to recovery services if you need them. They are pricey.

.... Thinkpads_User
Ashok DewanFreelancerCommented:
Scan your hard drive  by your hard disk vender's software to check if there are bad sectors, if it will find then bad sectors automatically repair. .  I hope you will bootable software from your hdd vender's site.
I would slave the hard drive and start copying data to an alternate location.
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1 run checkdisk first
    chkdsk /f
2. connect this as secondary drive to another machine and make your data backup.
motnahp00Connect With a Mentor Commented:
Hey Thinkpads,

What is your take on SpinRite? I wasn't impressed with it at all. It took 22 hours to scan an 80GB HD and recovered nothing. I ended up using RStudio which didn't recover any of the smaller files but surprisingly did an awesome job with large files like PSTs. The customer was happy to see his congressional inquiry intact within an email.
John HurstBusiness Consultant (Owner)Commented:
I used it for a client to recover critical data and saved their bacon. They were incredibly happy. There was data I could not get, but it was less critical.

Any of the tools (SpinRite, Recuva, Rstudio) have their limitations. What works for me may not work for you and vice versa.

... Thinkpads_User
That's cool.

GRC happily provided me a refund with the request that I destroy the media.
Gerwin Jansen, EE MVEConnect With a Mentor Topic Advisor Commented:
@Anuroopsundd - I'd advise not to run chkdsk on a disk that has CRC errors, my experience is that chkdsk makes things worse. Always first copy whatever you can

When you experience disk problems in general (CRC or other), I'd recommend in line with thinkpads_user:

- Boot from alternate media like CDROM or USB and save files first, after which recovery can be attempted for the files that could not be copied.
- When no alternate boot is possible, disconnect drive from current system and connect it through a (USB) drive adapter, try accessing it from another system.

After files have been restored and you still have warranty, test the drive with the manufacturer supplied test program to determine it's RMA status.
John HurstBusiness Consultant (Owner)Commented:
>>>> I'd advise not to run chkdsk on a disk that has CRC errors, my experience is that chkdsk makes things worse.  <--- I very much agree with this. .... Thinkpads_User
techpAuthor Commented:
this is hitachi brand- laptop harddisk of toshiba
Try to use a Live CD if it can read the HDD if yes connect an external and copy data to it if it doesnt work Go for data recovery Software like Stellar Phoenix Windows Data Recovery or iCare Data Recovery Software
nobusConnect With a Mentor Commented:
i found HDDRegenerator useful in these cases, it repairs up to 60% of all bad drives ( it did so for me), and faster than spinrite ( which is a similar tool)
of course, scratched surfaces cannot berpaired with any software...
noxchoGlobal Support CoordinatorCommented:
Give this guys a chance to look at your HDD: http://freedatarecovery.us/ 
You pay nothing for it.
good find noxcho ..i'm interested in the results
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