How To Use Chkdsk To Fix Errors

How To Use Chkdsk To Fix Errors – Summary: This guide introduces the differences between CHKDSK /F and CHKDSK /R and which one is better. Also tell you when and how to run them to check and fix hard drive errors and what to do when CHKDSK doesn’t run. – From

This post is a complete guide to CHKDSK /F and /R and explains their differences. It also offers detailed steps on how to run CHKDSK /F or /R to check and fix Windows 10/8/7 hard disk errors.

How To Use Chkdsk To Fix Errors

How To Use Chkdsk To Fix Errors

More importantly, if CHKDSK /F or /R hangs or fails to verify a hard drive, here are proven solutions to help you.

How To Fix Disk Errors With Check Disk Utility (chkdsk)

CHKDSK, a cmd command, is used to check the logical and physical errors of the file system (on computers, a file system is a way of storing and organizing files) and the file system metadata of a volume in Windows.

How To Use Chkdsk To Fix Errors

When used with parameters such as /F or /R, the CHKDSK utility can also repair logical disk errors and restore the integrity of a volume’s file system. But it cannot fix physical disk errors.

Note: Chkdsk for Mac is called fsck. Fsck is used in a Mac terminal. But usually users use First Aid in Disk Utility to repair disks.

How To Use Chkdsk To Fix Errors

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CHKDSK has types of parameters that help users resolve various disk errors. And the parameters /F and /R are the most used. Both CHKDSK commands are used to fix logical disk errors. But actually they are different.

CHKDSK /R: Check and repair disk errors. Find and repair bad disk sectors and try to recover readable data from the affected disk sectors.

How To Use Chkdsk To Fix Errors

What needs to be mentioned is that both cannot repair the damaged files like videos and photos on the target drive.

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Most of you may be confused with the same question “Should I run CHKDSK /R or /F?”. As mentioned above, CHKDSK /R includes the functionality of CHKDSK /F and also has additional analysis of physical disk errors.

How To Use Chkdsk To Fix Errors

CHDSK /R seems to be better, doesn’t it? Not absolutely. Running CHKDSK /R will cost more time than running CHKDSK /F. This is because CHKDSK /R not only checks for and fixes logical disk errors, but also diagnoses physical disk errors. Typically, the CHKDSK process will take hours for a 1TB drive.

Which one to use therefore depends on your situation. If you are only going to do a routine check of your disk, it is sufficient to run CHKDSK /F.

How To Use Chkdsk To Fix Errors

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If your disk is unmounted, unreadable, inaccessible, or damaged, you can run CHKDSK /R. It will fix possible disk errors while checking the disk for bad sectors and restoring readable data.

CHKDSK /R /F and CHKDSK /F /R perform the same check and fix on the target hard drive. The only difference is the check order.

How To Use Chkdsk To Fix Errors

CHKDSK /R /F first checks and fixes hard disk errors and then finds the detected bad sectors and recovers readable data from the bad sectors. For CHKDSK, /F /R works in reverse order.

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In particular, running CHKDSK /R /F or CHKDSK /F /R has the same effect as running CHKDSK /R because CHKDSK /R contains the role of CHKDSK /F while running /F and /R lose at the same time, only you waste more time.

How To Use Chkdsk To Fix Errors

This is perhaps the question that worries most of us the most. CHKDSK will not cause data loss when scanning a volume, but it probably will when fixing disk errors with the /F or /R parameter.

This is because when CHKDSK /F or /R fixes logical errors, it must first delete corrupt or invalid indexes. And then reorganize the logical structure of the file system (or we say the file allocation table of the disk) through new calculation algorithms to make the disk available again. This results in data loss.

How To Use Chkdsk To Fix Errors

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Usually, the data you might notice being lost is usually caused by serious file system issues. If a file system with a small logical error, even if there are some minor changes during the repair process, your files are still stored there.

When your external hard drive is inaccessible, unreadable, damaged or crashed, or appears as RAW in Disk Management, you can run CHKDSK /F or /R to fix it.

How To Use Chkdsk To Fix Errors

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If your Windows computer is running slowly, does not boot normally, shows a BSOD with Unmountable Boot Volume Error, or shows a boot device not found, you can run CHKDSK /F or /R to repair the internal hard drive.

How To Use Chkdsk To Fix Errors

2. Type cmd in the search box and the prompt will appear. Then right-click on it and select Run as administrator.

Note: If you start the computer to enable safe mode with a command prompt, the cmd window will appear on the screen when the computer starts up.

How To Use Chkdsk To Fix Errors

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4. Type Y (means yes) when asked “Do you want to schedule this volume to be checked the next time the system reboots? (Y/N)” and press Enter.

Here we have summarized the common problems and error messages you may encounter when running CHKDSK /F or /R and their respective solutions.

How To Use Chkdsk To Fix Errors

After opening the command window and typing chkdsk or chkdsk /f or chkdsk /r, it reminds that “Access is denied because you do not have sufficient rights or the disk may be locked by another process”.

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It means you haven’t opened cmd. exe as administrator. CMD is set in Windows. And most of the cmd commands continue with tasks under advanced management function. So it is necessary to invoke the rights of the administrator.

How To Use Chkdsk To Fix Errors

It is possible to stick to each step when running CHKDSK. Since CHKDSK is a Windows tool, it is usually caused by an operating system problem. And since CHKDSK can fix logical disk errors, it’s probably the boot volume file that’s corrupted.

After you typed chkdsk /f or chkdsk /r on the command line, CHKDSK does not continue with the command, but shows “Chkdsk is not available for raw disks”.

How To Use Chkdsk To Fix Errors

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This means that the volume is RAW. Windows cannot recognize and read a RAW volume. According to the working principle of CHKDSK, which is mentioned above, it cannot check and correct the logical and structural errors of the RAW volume, sochkdsk is not available for raw disks.

Note: CHKDSK is not available for all RAW volumes. If the RAW volume is the result of minor file system errors, chkdsk will work. Or it will show “Chkdsk is not available for raw disks”.

How To Use Chkdsk To Fix Errors

Reformatting the volume can usually resolve RAW issues. But it will lead to data loss. So you need to use third-party software like Data Recovery for Windows to recover the data in the raw volume first. This step is very necessary.

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After typing chkdsk /f or chkdsk /r, an error message appears: “Windows cannot perform a disk check on this volume because it is read-only.”

How To Use Chkdsk To Fix Errors

The system cannot write information to a read-only volume. CHKDSK is on the system and CHKDSK /F and /R can make changes to the file system structure. And the following are the reasons why the volume is read-only and the solutions:

Solution: Enter the command below (here F: stands for the drive letter) in cmd exe. to try to fix the file system under the function of the three parameters.chkdsk F: /f /r /x

How To Use Chkdsk To Fix Errors

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It will remind you “chkdsk cannot run because the volume is in use by another process”, “Do you want to schedule this volume to be checked the next time the system reboots? (Y/N)’ after running CHKDSK /F or /R.

The target volume will be locked before running CHKDSK. If you open a file on the volume or it is the boot volume (in use) you get this error message.

How To Use Chkdsk To Fix Errors

1. If it is a bootable volume, it cannot be stopped from being used. You must enter Y ​​(means yes) so that it will be checked the next time the system restarts.

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2. If this is not a startup volume and you do not want to schedule it to be checked the next time the computer restarts, enter N (means no). Then close the open volume file and type chkdsk /f or chkdsk /r again.

How To Use Chkdsk To Fix Errors

An error similar to ’10 lost allocation units’ was encountered while running CHKDSK on 3 chains. Convert lost chains to files?’ It shows.

Because CHKDSK repairs a FAT file system usually by changing the disk’s file allocation table, which can lead to data loss. So CHKDSK will show a confirmation message like this.

How To Use Chkdsk To Fix Errors

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Solution: To avoid data loss, it is recommended to enter Y. The operating system will then save any lost chain in the root directory as a file named in the format File nnnn.chk.

Sometimes an error message like “Unable to open volume for direct access” may appear when you run CHKDSK, which means either another program has access to the volume or the volume itself is inaccessible.

How To Use Chkdsk To Fix Errors

Solution: Disable third-party services or create a clean boot environment. Then run CHKDSK again. Go to Fix CHKDSK cannot open direct access volume to get the detailed solutions.

Scanning And Repairing Drive

This error message may appear when chkdsk detects an internal hard disk integrity problem during system startup. It may also appear after chkdsk has finished running. This chkdsk error usually appears along with misc

How To Use Chkdsk To Fix Errors

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