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#909939 - 08/25/13 08:07 AM CRC
Geo Offline
Addicted Boomer

Registered: 06/01/05
Posts: 2338
Loc: Michigan
hello,
I used my ext.HD yesterday and it worked fine. Today when I tried to save something to it,it said "You need to reformat this drive". When I clicked cancel on that message a different message came up-"Data Error(CRC)".
Any ideas what to do. Can it be saved?

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#909954 - 08/25/13 09:35 AM Re: CRC [Re: Geo]
Draclvr Online   content
Adept Boomer

Registered: 06/03/05
Posts: 10152
Loc: In Missouri near St. Louis
Good morning, Geo. I looked the error up and everything I saw said the first thing to do is a CHKDSK on the exterior drive. More info here...

CRC Error
_________________________
Gardening is better than therapy. Plus you get tomatoes.

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#909955 - 08/25/13 09:36 AM Re: CRC [Re: Geo]
Jenny100 Offline
GB Reviewer Glitches Moderator
Sonic Boomer

Registered: 10/24/00
Posts: 35562
Loc: southeast USA
A CRC error means the drive failed its cyclic redundancy check. In other words, the computer couldn't read the drive properly.

The first thing to try is to see if the problem is with the USB slot or USB cord you're using. Use a different USB slot or a different USB cord and see if you have better luck. I'm assuming your external drive connects by USB. If it connects by Firewire or eSATA, you'd have to change those cords instead of the USB cord.

Assuming that's not the problem, and if it's a regular hard drive (not an SSD drive), it's possible a utility like Spin-Rite could recover the information on the drive.
https://www.grc.com/sr/spinrite.htm

Of course Spin-Rite costs money, but if the information on the drive is important, it may be worth it. Make sure you have enough space on another drive to copy the information off the bad drive to. How SpinRite works:
https://www.grc.com/sr/whatitdoes.htm

There may be a free drive recovery utility you could find, though it's unlikely to be as thorough as SpinRite. It may be all you need though. A lot depends on where the bad part of the drive is.

One trick, which sounds odd but sometimes works for people, is to put the drive in the freezer for a few hours. It works for some drive problems, not others. It generally works just long enough to get your data off (when it works).

If you do manage to get your data off the drive, assume it's bad and don't trust it again. Consider the guarantee for consumer-grade hard drives is no longer than 5 years and often less, and save your data on at least two external hard drives in case one goes belly up.

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#909957 - 08/25/13 09:38 AM Re: CRC [Re: Geo]
Draclvr Online   content
Adept Boomer

Registered: 06/03/05
Posts: 10152
Loc: In Missouri near St. Louis
I knew Jenny would have good information! I've bookmarked that spinrite website just in case.
_________________________
Gardening is better than therapy. Plus you get tomatoes.

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#909959 - 08/25/13 09:57 AM Re: CRC [Re: Geo]
Geo Offline
Addicted Boomer

Registered: 06/01/05
Posts: 2338
Loc: Michigan
Thanks for the suggestions.

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#909999 - 08/25/13 02:06 PM Re: CRC [Re: Geo]
InlandAZ Online   content
Glitches Forum Moderator
BAAG Specialist

Registered: 08/14/02
Posts: 6852
Loc: Arizona
If you can still read the old files, I'd suggest you get them copied off ASAP.

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#910014 - 08/25/13 05:02 PM Re: CRC [Re: Geo]
Geo Offline
Addicted Boomer

Registered: 06/01/05
Posts: 2338
Loc: Michigan
Nope cannot access the drive at all.Just as a thought,I noticed in windows explorer a couple of weeks ago that the nice little hard drive symbol that used to appear near the drive letter had disappeared.I didn't think anything about it at the time but now I think it may have been an omen of things to come.

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