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 Post subject: Cyclic Redundancy Check Error
PostPosted: March 16th, 2015, 3:49 
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Joined: March 16th, 2015, 3:37
Posts: 23
Cyclic Redundancy Check Error at Initialize Disk in Disk Management (Windows) , how i can repair this error? sory for inconvenience :(


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 Post subject: Re: Cyclic Redundancy Check Error
PostPosted: March 16th, 2015, 8:45 
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Joined: August 18th, 2010, 17:35
Posts: 3378
Location: Massachusetts, USA
These type of errors cannot be fixed per se.

The errors occur as result of degradation of logical blocks data has been written to. So, the idea here is to "repair the drive" in a way where these bad blocks are reallocated to spare areas on the drive.

In attempting this reallocation of bad blocks, there are some preliminary issues that are important to consider first, such as:
1) The condition of the drive indicates that the drive is on its way to becoming increasingly worse with any additional power on in traditional common operating environments, such as when attempted to boot from or run on supported file system OSs.
2) Are the files on the drive important? Is there a need to backup those files before attempting repairing those bad blocks? If yes, then have a solid plan that will maximize chances of success in doing so. Careful here: a lot of people mess up because of poor planning as result of underestimating what could be done with insufficient resources, whether it is knowledge, tools, etc.
3) It is possible that the drive is already so degraded that "a repair" may not be possible or feasible.

I would recommend checking the drive with MHDD and understand its condition better.
For example, check SMART, run a very brief scan to get an idea of extent of bad sectors and go from there.
Whatever you do, stay away from Windows and any utilities running into a Windows environment that claim "to repair bad sectors". Also, do not run any "checkdisk" type of utilities. They will not help, especially if the files need to be recovered first.

The condition of the drive will dictate how much it could be accomplished toward restoring the drive's functionality.

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 Post subject: Re: Cyclic Redundancy Check Error
PostPosted: March 16th, 2015, 19:44 
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Joined: April 3rd, 2011, 0:19
Posts: 1957
Location: Providence, RI
Here's an article that explains what CRC errors are: http://www.data-medics.com/3/post/2014/ ... -mean.html

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 Post subject: Re: Cyclic Redundancy Check Error
PostPosted: June 3rd, 2015, 2:37 
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Joined: April 22nd, 2015, 18:21
Posts: 11
Location: Moldova
labtech wrote:
These type of errors cannot be fixed per se.

The errors occur as result of degradation of logical blocks data has been written to. So, the idea here is to "repair the drive" in a way where these bad blocks are reallocated to spare areas on the drive.

In attempting this reallocation of bad blocks, there are some preliminary issues that are important to consider first, such as:
1) The condition of the drive indicates that the drive is on its way to becoming increasingly worse with any additional power on in traditional common operating environments, such as when attempted to boot from or run on supported file system OSs.
2) Are the files on the drive important? Is there a need to backup those files before attempting repairing those bad blocks? If yes, then have a solid plan that will maximize chances of success in doing so. Careful here: a lot of people mess up because of poor planning as result of underestimating what could be done with insufficient resources, whether it is knowledge, tools, etc.
3) It is possible that the drive is already so degraded that "a repair" may not be possible or feasible.

I would recommend checking the drive with MHDD and understand its condition better.
For example, check SMART, run a very brief scan to get an idea of extent of bad sectors and go from there.
Whatever you do, stay away from Windows and any utilities running into a Windows environment that claim "to repair bad sectors". Also, do not run any "checkdisk" type of utilities. They will not help, especially if the files need to be recovered first.

The condition of the drive will dictate how much it could be accomplished toward restoring the drive's functionality.



How can you reallocate this bad blocks? Or is there a way to make, for example, a 160GB HDD to a smaller capacity? Like 80-100GB?


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 Post subject: Re: Cyclic Redundancy Check Error
PostPosted: June 3rd, 2015, 9:24 
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Joined: August 18th, 2010, 17:35
Posts: 3378
Location: Massachusetts, USA
Read MHDD manual. Then read about formatting and partitioning according to where the concentration of bads are located.

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 Post subject: Re: Cyclic Redundancy Check Error
PostPosted: June 3rd, 2015, 10:27 
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Joined: April 3rd, 2011, 0:19
Posts: 1957
Location: Providence, RI
labtech wrote:
Read MHDD manual. Then read about formatting and partitioning according to where the concentration of bads are located.


I don't know, drives like this only get worse. It's better to just spend a few bucks, replace the drive, and save the aggravation later of having it fail unexpectedly.

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