Malfunctions 

CRC hdd data error. How to fix an error in CRC data: methods for treating disks. Why does the CRC hdd error appear?

To fix cyclic redundancy check error, you may have to resolve hardware issues such as bad sectors on your hard drive. Often, removing debris from external media such as CDs or DVDs (where the data is copied from) works to stop error messages from popping up. Cyclic Redundancy Check (CRC) is a message that appears on your computer screen whenever your computer reads corrupted data. CRC basically detects an error in a file that is being read on your computer. This error message usually occurs when your computer tries to read data from damaged media such as HDD, CD or DVD.

When data is transferred to a PC, CRC ensures that the data, with numerous errors, does not reach the specified destination. This is why a damaged CD will not be copied to your computer.

Fixing CRC errors

Problems with external CD/DVD media
Many times, accumulation of dirt on a CD or DVD causes a CRC error. Cleaning this media with a soft cloth often solves the problem. A scratched CD or paper label on the disc can also be a problem. This is because scratches or marks prevent the data from being written to the disc correctly. Partially written discs are especially responsible for causing this error. To extract information from damaged disks, exist software applications very helpful in this regard. These data recovery tools such as Lost digital images from damaged CDs and DVD discs.

Hardware problems
If the CRC error continues to appear even after running Disk Cleanup, then there is most likely a hardware problem. You need to check the cleaning of CDs and DVDs and clean them regularly. Find out whether these devices actually function correctly. Replacing the CD/DVD reader with a new one may solve this problem.

WITH software

In such cases, the system may display messages like "Invalid" Windows file» or » invalid win32′ application. But this is actually a CRC error.


A file that was not downloaded correctly from the Internet or file transfer was interrupted can also result in a CRC error. Therefore, before opening the file, check whether it has been fully downloaded or not. You can use a download manager when downloading any file from the Internet. The Download Manager application saves the track during the download process, and notifies you when it is complete. Or, you can try downloading again from the beginning and see if the error still occurs.

Lost connection
Defective connections between the computer and hard drive cause CRC messages to pop up on the screen. To fix a CRC error related to network problems, you need to check all connections to decode the problem. Sometimes, DVD/CD connections become disconnected and may affect the functioning of the device.

Hard drive problems
In many cases, a CRC message is displayed on the screen when the destination drive (hard drive) has bad sectors. So although DVD/CD is completely normal, this error can still occur. This happens because the location (hard drive) where you are trying to save the file has bad sectors. Check if there are bad sectors by executing the NUL command and launching the command line. In fact, this command reads the contents of a file saved on a CD/DVD. For example, if the DVD is on computer E, and the nicks.txt file in the DVD is stored in the tng\audio folder, then the command line will look like this:

E:\>cd tng\audio

E:\tng\audio>xcopy nicks.txt NUL

1 File(s) copied

Because the destination is not specified, it only reads the file. If the command is executed successfully, you will get the result as 1 file(s) copied, i.e. the file was read successfully, and as such there is no problem with it. This means that the hard drive is damaged due to a bad sector. In such a case, the solution is to either change the hard drive or burn the DVD on a different machine altogether.

Repair hard drive
If you're thinking about hard repair drive, you can run a recovered hard drive test program such as SpinRite. This program does two things. First, it retrieves data from the bad sector. Secondly, it marks all bad sectors so that data will never be written to them again in the future. Another option to remove errors from your hard drive is to run the CHKDSK command. This is a disk check with a command that identifies bad sectors and tries to restore readable information.

Run CHKDSK from GUI user (GUI)
Double-click the My Computer icon on your desktop. Select hard section drive you want to check. As we all know, letters are often used to name disk partitions. Depending on the size of your hard drive, it will have two or more partitions. Therefore, if your hard drive has 4 sections, you must run the CHKDSK command for each section to scan the entire hard drive.

Let's say you've selected partition D (called drive D) of your hard drive. Right-click on the D drive icon and select ‘Properties’.

The Properties window will appear on your computer screen. Click the Tools tab to view Check Now.

Click the "Check Now" button.

The Check Disk window has two checkboxes "Automatically repair system errors' and 'Check and repair bad sectors'. Check both boxes and click the "Start" button to ensure that errors encountered during the scan are corrected immediately and data from the bad sector is recovered.

Important Note
Partition C of a hard drive typically contains operating system files that run in the background while the computer is in use. Therefore, if you decide to run the CHKDSK command on the C drive, the scan is unlikely to start at all. In fact, you will see a pop-up window that conveys the message “Windows cannot verify this drive while it is in use.” This window appears if you have installed operating system Windows 7. The pop-up window also has a "Schedule Check Disk" button. Click on this button and the disk checker will be assigned after you restart your computer. In other words, you need to shut down your computer properly and start it again to run CHKDSK.

Run CHKDSK from the command line (CMD) To see the command prompt on the screen, firstly press in Windows button"Start". Now type “cmd” in the “Start Search” field and press the “Enter” key on your keyboard. You will be able to view command line utilities. Syntax CHKDSK command chkdsk [drive:] To search and recover data from bad sectors and correct other errors on the C drive, enter "chkdsk c: /r" in command line and press the enter button. To run the CHKDSK command on other disk partitions, replace 'C' with the letter that represents the partition of your disk.

However, if you are not interested in recovering data from bad sectors and want to fix errors, then type “chkdsk c:/f’. This command completely skips bad sectors when scanning the disk.

How long to wait for the CHKDSK /r operation to complete? This will depend on the size of the hard drive and the amount of damaged data. The larger the hard drive, the longer the scan will take. For example, the CHKDSK command, which runs on a 120 GB hard drive, will take about 10 hours. On the other hand, a 1 terabyte hard drive full of data may take 30-35 hours to complete the CHKDSK command. Recovering data from damaged storage As mentioned above, a CRC error appears when copying files from external media to a computer (hard drive) and indicates that there are bad sectors on the CD/DVD. Now a solution for retrieving data from external media. To do this, you need to go to the command line. Use the cd command to change the current working directory where the file is stored. Let's say user\public is the folder on your CD/DVD drive (on drive E) from which you want to copy the file.

E:\>cd File Location

E:\>cd user\public

The command line after executing the command looks like this - E:\user\public> pointing to our current working directory user\public.

Let's say nicks.txt is the name of the file where the data is stored. This file is stored in the (user/public) folder. Now we have to move the data from nicks.txt to another new location (say B:\newfolder). To do this, you need to use the xcopy command, which allows you to copy one or more files from one folder to another.

The syntax is as follows: xcopy source destination

So, now you need to enter a command in the command line that will copy the data and it will look like this -> E:\user\public> xcopy /c nicks.txt B:\newfolder

There is a high possibility that xcopy may stop copying files as soon as it reads errors from the source (user/public). To avoid this situation, you also need to use the “/c” parameter. This ensures that xcopy copies data continuously from the source.

If you want to create a copy of all files in the user\public folder, then instead of nicks.txt you must enter *.*.

So, xcopy will look like xcopy /c *.* B:\newfolder.

Another option is to directly copy the entire contents of the DVD/CD to a new folder on your computer. The syntax is as follows: xcopy /c E:\files C:\files /s /i

Here the data from the files in the folder E drive (CD/DVD drive of your computer) is copied to a new folder so-called files and located on the C: drive. The '/S' option allows you to copy all subdirectories located in E:\files.

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Error CRC data most often appears when the user copies data or writes an image downloaded from the Internet to disk. This is a common bug that occurs due to a mismatch between the checksums and the file size.

What is CRC

The abbreviation CRC stands for cyclic redundancy check. Translated into Russian it sounds like this: “ cyclic redundancy code" This is an algorithm for calculating checksums. With his help computer device checks data integrity.

This is an application that detects faults in communications technology and protects the computer from them. Works through the mathematical properties of cyclic code.

Therefore, when the computer detects a checksum mismatch, a CRC error error appears on the user’s screen.

Why does the error occur?

Often an error in CRC data appears when copying archives or files from one local disk to another. This usually happens when a failure occurred before the copy process. For example, the information was not fully downloaded from the Internet, or the archive was damaged by whoever packaged it or placed it on the website from where the download took place.

IN archiving process there could also be a hardware failure. Problems with the RAM installed on the computer can also contribute to the appearance of this bug.

Here are some other problems that cause the error to occur:

  • physical damage carriers;
  • violation in the system registry;
  • failures when installing programs;
  • data protected password;
  • wrong configuration files.

One of the main causes of cyclic redundancy code problems can be presence of bad sectors(damage) on the hard drive.

Hard drive problems

If the hard drive has a lot of bad sectors that lead to rapid failure, information may end up in these sectors, which can also cause problems with initialization. Then it is very difficult to extract the data undamaged, and sometimes even impossible. The Bad Copy program can help in this matter.

In order to fix a CRC error on a hard drive or flash drive, it is recommended install the utility to your computer and run it. Next take the following steps:


If this does not help and the next time you copy, a message board with a message about a bug appears on the screen again, then it is recommended to defragment HDD.

To do this, download any defragmenter. For example, O&O defrag.

Install it to your hard drive and run it. In the window that opens, click on the button “ Start" and the utility will begin defragmentation. We'll have to wait a little.

Also possible problems with indexing files. To check it is better to disable it:

Another troubleshooting method would be error checking. To do this, you need to repeat the same steps as in the previous paragraph, only in the window that opens, go to the “ tab Service" and click on the " " button.

Possible errors

If everything is fine with the hard drive, then the root of the problem may lie in malfunctioning utilities.

For example, in uTorrent, if an error appears like in the photo, then most likely the user downloaded broken distribution.

To remove this bug, you need to go to the torrent tracker and download the necessary information from another distribution.

If a CRC bug appears when transferring data from a CD or DVD drive, then it is most likely an optical one. the media is dirty. You should take it out and wipe it with a dry cloth or a special rag. If it has severe scratches, then the fault cannot be eliminated. This disc can be thrown away.

A CRC error when installing a game indicates the following types problems:

  • downloaded corrupted file. This happened because the Internet was unstable at the time of downloading. It is recommended to re-upload or download from another distribution. The problem of broken distribution is written above;
  • file was not downloaded to end. This happens when the connection is interrupted.

It is recommended to use torrent trackers. Since the download stops on them if the connection is interrupted. And it begins again when the connection between the Seeds and the Pyrrhas is established. That is, the user will always receive the file in full.

On torrent trackers, the chance of stumbling upon a broken distribution is also very small.

Very often, novice “experienced users” decide to install the OS themselves, but they don’t always succeed the first time. At Windows installation the user may encounter various problems, such as the error 0x0000007b, data error (CRC) and some others, but one of the most common problems still remains "error when copying files". This error can occur for several reasons, let's try to consider them in order of ease of elimination and likelihood of occurrence.

1 Reason . The most common and easily removable reason is a poorly recorded CD or DVD disc that has been damaged by time and scratches.
Solution: Burn only to high-quality discs that have a service life of more than six months. Firm disks Verbatim And TDK are quite suitable, their service life is more than three years.

2 Reason . The service life of many CDs, DVD drives is only a year and a half. Listen to the drive, if the sounds in it are repeated and files are copied slowly, especially if the computer or laptop is old, then this is most likely the reason.
Solution: Oddly enough, a freshly recorded clean disc can be read even on the worst CD drives, so be sure to try changing the disc. If attempts are in vain, then you can revive the old CD or DVD drive by increasing the power supplied to the laser, but this is more of a method for the pros. There is plenty of information on how to do this on the Internet. If this method does not suit you, and there is no other CD or DVD drive at hand, then there is only one way out - install the system from a flash drive.

3 Reason . RAM.
Solution: This happens extremely rarely and it is likely that a broken bar is to blame random access memory almost no, but before moving on to the next reason, it makes sense to check it with a program Memtest 86+ 4.20. You can find this program on the assembly Zver CD 2013.3.

4 Reason . If you have tried several discs, you are confident in your CD, DVD drive, and the error keeps popping up and popping up or in addition to " error when copying files" you see on the screen "data error (CRC)", then you have encountered not the most common, but the most unpleasant mistake - hard error disk. This happens when problems arise not at the software level, but at the physical level, when the surface of the hard drive is partially destroyed.
Solution: The easiest way is, of course, to buy a new hard drive in a store, but there are ways that can give your hard drive a second chance, which we will look at now. First way Suitable if there are very few such places on the surface of the hard drive. To do this, you need to check and fix the surface of the hard drive special utility Victoria 3.51, it is included in the Zver CD 2013.3 build. Second way Suitable if there are many such bad sectors and it is not possible to fix them. In this case, we simply cut off part of the hard disk with bad clusters (bad parts of the hard disk), so that the computer does not access the damaged surface when operating. To do this you need to use the program Acronis DD Home 11(we are also looking for it on Zver CD 2013.3) and we simply delete the first 50-300 GB of the hard drive (I recommend one third of the total volume) and create a partition/partitions in the remaining part of the hard drive, after which we install Windows on this partition. If you have restored the functionality of your hard drive and installed Windows on it, you should not continue to use partitions of this hard drive as long-term storage of data that is important to you.

Many users are familiar with the situation when the system issues various errors. How to treat CRC hdd data error? What caused its appearance?

As a rule, it occurs when copying CD/DVD information and indicates damage to the disk or loss of the ability to make the necessary copies. Naturally, there is nothing pleasant about this, but there is no need to panic about it. Thanks to the existence of special programs, you can fix the problem and read data that contains damaged disks.

Why does the CRC hdd error appear?

The cause of the appearance may be mechanical damage to the disk or its “wornness” due to its long service life. To accurately determine the cause of the error and the condition of the disk, you can try copying it to third party computer. If the error repeats, we can talk about damage to the media itself.

If there is damage in the part of the disk where the inscriptions are made, you can use a marker and sketch them out. Don't be surprised, but sometimes this measure is effective!

BadCopy Pro program

It will help a lot to fix the problem useful program BadCopy Pro, which we recommend installing. Thanks to special algorithms that recognize bad sectors, the program has the ability to read information from damaged media.

Using the BadCopy Pro program, you can recover information whose carriers are unreadable disks, floppy disks, hard drives, flash drives, etc. The program provides recovery of graphic, text, executable files, archives, and so on. The presence of a simple, clear and convenient interface allows even beginners to use this program.

If the disk is severely damaged, restoring information will require your patience and time. The likelihood of success depends on how severely the media is damaged.

Using BadCopy Pro you can solve the following problems:

  • access unreadable files
  • recover lost photos on digital devices
  • recreate files from a floppy disk that were deleted during a quick format
  • recover lost files on floppy disks, CD/DVD-R and CD/DVD-RW, CD/DVD-RW.

If you are not sure that you can cope with the “treatment” hard disk yourself, contact service center for qualified help. I wish you success!

The crc error occurs when the user tries to copy a file to his hard drive or other storage medium.

The manifestation of this trouble can be associated with two main root causes:

  • Size checksum mismatch.
  • Some damage to the hard drive being used.

There is a way out of any of these situations that can lead to a crc error.

Treatment of the first option

The crc error, associated with a mismatch in the size of the downloaded file and its theoretical source, usually occurs when using a torrent. For example, such a discrepancy can lead to the entry “crc data error when installing the game” at any stage of installation, when a person has already prepared himself for a pleasant pastime.

The solution to this problem is quite simple, although it will require the user to waste his time:

  1. Enable torrent client.
  2. Remove problematic files from distribution (select with the mouse and click on the “del” button).
  3. Erase already downloaded information from the PC hard drive.
  4. Search online and find a better giveaway. Recommends paying attention to reviews from other people who may have discovered this problem earlier, which will save time.

Fixing the second type of this problem

If a crc data error appears on an external hard drive or on its stationary counterpart, then a little more effort will be required.

The initial step in how to fix a crc data error related to a drive is to perform a small verification procedure:

  1. Select the disk you want to record to.
  2. Click on it right click mouse so that you can go to the properties menu.
  3. Go to “Service”, where you select the first line that gives you the right to start checking the disk.
  4. Wait for the result.

After this step, it is recommended to perform defragmentation. This process starts in the same place, just one line down. Typically, such a procedure requires a significant wait, so you will have to be patient or devote yourself to something else.

If the two steps described above could not positively solve the problem, then you will have to use special programs. How to treat crc hdd data error? Typically used for this HDD Regenerator, Victoria or similar applications. After installation, you should go to the software settings, where you can set the parameters so that the application starts checking immediately before the operating system loads.

Only if none of the proposed options helped to cope with the situation, you should seek help from specialists who may advise changing the hard drive.