Jump to a Section. Short for "check disk," the chkdsk command is a Command Prompt command used to check a specified disk and repair or recover data on the drive if necessary.
Chkdsk also marks any damaged or malfunctioning sectors on the hard drive or disk as "bad" and recovers any information still intact.
The availability of certain chkdsk command switches and other chkdsk command syntax might differ from operating system to operating system. In the above example, since no drive or additional options were entered, chkdsk simply runs in read-only mode. If problems were found when running this simple chkdsk command, you'll want to make sure to use the example from below to correct any issues. In this example, the chkdsk command is used to perform an extensive check of the C: drive to correct any errors and to locate any recovery information from bad sectors.
This is best used when you're running chkdsk from outside of Windows, like from a recovery disc where you need to specify which drive to scan. This chkdsk command runs an online scan on the C: volume so that you don't have to dismount the volume to run the test, but instead of fixing any issues while the volume is active, the problems are sent to a queue that will be resolved in an offline repair.
In this example, chkdsk will fix problems on the C: drive while you're using it, and will use as much system resources as allowed so that it will run as quickly as possible. Chkdsk is often used with many other Command Prompt commands and Recovery Console commands.
The chkdsk command is similar to the scandisk command used to check a hard drive or floppy disk for errors in Windows 98 and MS-DOS. When you visit this site, it may store or retrieve information on your browser, mostly in the form of cookies.
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You can find out more and change our default settings with Cookies Settings. By Tim Fisher. Tim Fisher. Tim Fisher has more than 30 years' of professional technology experience. He's been writing about tech for more than two decades and serves as the VP and General Manager of Lifewire. Reviewed by Michael Barton Heine Jr. Tweet Share Email. In This Article Expand. Chkdsk Command Availability. Chkdsk Command Syntax. Chkdsk Command Examples. Related Commands. How to Read Command Syntax.
Chkdsk Command Options Item Explanation volume: This is the drive letter of the partition for which you want to check for errors. If used on an NTFS volume, it will show cleanup messages if there are any. This is true for both internal and external hard drives ; you can continue using them throughout the course of the scan. Use the help switch with the chkdsk command to show detailed help about the commands listed above and other options you can use with chkdsk.
Was this page helpful? Thanks for letting us know! Email Address Sign up There was an error. Please try again. You're in! Thanks for signing up. There was an error. Tell us why! More from Lifewire. This is the drive letter of the partition for which you want to check for errors. This option tells chkdsk to locate bad sectors and recover any readable information from them. This option will perform a less vigorous chkdsk command by instructing the command to run faster by skipping over certain regular checks.
Use this chkdsk command option to change the size in KB of the log file. This option allows chkdsk to run faster by using more system resources. This chkdsk option runs an online scan on an NTFS volume but does not try to repair it.
This chkdsk option dismounts the volume only briefly in order to fix issues that were sent to the log file.
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Chkdsk windows 10. How to Scan & Fix Hard Drives with CHKDSK in Windows 10
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How to Run CHKDSK in Windows 10 - Chkdsk command examples, options, switches, and more
replace.me › PC & Mobile › Devices › Windows. Open up File Explorer, right-click on the drive you want to check and select Properties. Windows File Explorer; Next, select the Tools tab and.
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