CRC errors

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Norvin - 04 Feb 2006 04:58 GMT

After running PC-Doctor the log file shows that my hard drive had a crc
error in 3 blocks. My question is if there is anything that WinXP can do
to correct. Maybe there is some other procedure to correct, if so, I
would appreciate any suggestion. Reformat is my very last option at this
point.
Thanks
Norvin

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M and D - 04 Feb 2006 05:21 GMT

CRC errors could be generated by any of the below reasons:

1. During the transmission of the file it became corrupt or bad.
Solution - Download the file again.

2. The device being opened from is bad or contains errors.
Solution - If the file is being opened from a CD-ROM it is possible the CD is dirty or scratched causing read errors. If the CD was burned it is possible that it was burned improperly. Clean the CD-ROM or re-burn the software.

3. The file itself is corrupted or the program attempting to open the file is corrupted.
Solution - Reinstall the program being used to open the file or attempt to open the file with a different program.

Finally, run Error Checking (chkdsk).

Steven

> After running PC-Doctor the log file shows that my hard drive had a crc
> error in 3 blocks. My question is if there is anything that WinXP can do
[quoted text clipped - 3 lines]
> Thanks
> Norvin

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Galen - 04 Feb 2006 05:23 GMT

My reply is at the bottom of your sent message:

> After running PC-Doctor the log file shows that my hard drive had a
> crc error in 3 blocks. My question is if there is anything that WinXP
[quoted text clipped - 3 lines]
> Thanks
> Norvin

CRC = Cyclic Redundancy Check. It's the integrity of the data (generally)
and not the block. If it's found some then a) it's not a good application
which is my first experience with it but if you really want to use it then
go ahead or b) there's data on your drive that's corrupted.

If you want you can check the disk...

Chkdsk, the reality:
http://kgiii.info/windows/XP/general/chkdsk.html

But, find the data and if it's really corrupted then delete it and replace
it? Else ignore the silly application. I'd still run chkdsk though... Just
to be safe.

Signature

Galen - MS MVP - Windows (Shell/User & IE)
http://dts-l.org/
http://kgiii.info/

"I am glad of all details, whether they seem to you to be relevant or
not." - Sherlock Holmes

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Norvin - 05 Feb 2006 01:29 GMT

> My reply is at the bottom of your sent message:
>
[quoted text clipped - 19 lines]
> it? Else ignore the silly application. I'd still run chkdsk though... Just
> to be safe.

Thanks for all the info and suggestions, however after running chkdsk /f
/r and finding/correcting some files, I still have the three blocks
giving errors on PC-DR. Is there someway to figure out what
file/application is at those 3 blocks. My curiosity is starting to get
the best of me now since my PC seems to be working OK.

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Pavel A. - 05 Feb 2006 14:01 GMT

> Thanks for all the info and suggestions, however after running chkdsk /f
> /r and finding/correcting some files, I still have the three blocks
> giving errors on PC-DR. Is there someway to figure out what
> file/application is at those 3 blocks.

Yes there is. But first check your eventlog. Does it show any red marked drive
or disk controller errors that can be associated with running any app
or chkdsk?
If the answer is no, you have no reason to worry. The bad blocks are
properly marked so Windows won't put any data there.

> My curiosity is starting to get
> the best of me now since my PC seems to be working OK.

See http://www.sysinternals.com/Utilities/DiskView.html
This is for curious :)

Regards
--PA

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Galen - 05 Feb 2006 21:51 GMT

My reply is at the bottom of your sent message:

>> My reply is at the bottom of your sent message:
>>
[quoted text clipped - 24 lines]
> file/application is at those 3 blocks. My curiosity is starting to get
> the best of me now since my PC seems to be working OK.

You mean PC Doctor doesn't tell you what they are? Heh... They're probably
something silly like locked files that are set for your AV. Sorry but I have
yet to see anything good come from that piece of software and heard a number
of complaints about it in the past. Assuming you've done the chkdsk and it
came out okay then I'd really wager that there's nothing major wrong. I
suppose if you WANT to dig it out then you might look to the manufacturer of
the drive's site and see if they have a specialized drive checking tool
(they usually do) for their own drives and use that for more information.

Signature

Galen - MS MVP - Windows (Shell/User & IE)
http://dts-l.org/
http://kgiii.info/

"I am glad of all details, whether they seem to you to be relevant or
not." - Sherlock Holmes

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Al Dykes - 04 Feb 2006 13:56 GMT

>After running PC-Doctor the log file shows that my hard drive had a crc
>error in 3 blocks. My question is if there is anything that WinXP can do
[quoted text clipped - 3 lines]
>Thanks
>Norvin

As others have said, run chkdsk.

Find the make and model and serial # of the disk drive. Go to the
manufacturer's website and find the support page for it. It will have
a place to enter the serial # and it will tell you if it's still on
warranty and give you a preceedure for getting a replacment drive.
This will probably require you to download and run a "drive fitness
test".

Even if the drive is out of warranty, run the test. If it comes up
with errors, I'd plan on replacing the drive soon. Keep the DFT tool
and run it once in a while.

And backup, backup, backup.

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a d y k e s @ p a n i x . c o m

Don't blame me. I voted for Gore.

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