![]() ![]() If size is not specified, displays current size. /L:size NTFS only: Changes the log file size to the specified number of kilobytes./R Locates bad sectors and recovers readable information (implies /F).On NTFS: Displays cleanup messages if any. /V On FAT/FAT32: Displays the full path and name of every file on the disk.filename FAT/FAT32 only: Specifies the files to check for fragmentation.volume Specifies the drive letter (followed by a colon), mount point, or volume name.C:\>chkdsk /? Checks a disk and displays a status report.So, for the sake of completeness - and your geeky enjoyment - here they are: There are, of course, other parameters you can use with chkdsk. For that reason, you should always make sure you have a good backup routine in place and back up your PC before running chkdsk. If chkdsk does encounter problems - especially hard bad sectors - that it can't repair, data can become unusable. Fortunately, chkdsk was able to recover the sectors in my case, and everything went back to normal afterward. After a lot of troubleshooting, a chkdsk scan revealed I had bad sectors where my Outlook data file was stored. ![]() Even if you're just having strange problems with apps not loading or crashing that you haven't been able to resolve another way, you might consider checking the disk.įor example: I once had a problem where Outlook suddenly started crashing on me shortly after loading. Sometimes Windows will automatically run a scan during startup, but most often you'll have to do it yourself. You should also consider running it any time Windows has shut down abnormally - such as after a power loss or system crash. You may want to run chkdsk every few months as part of routine maintenance along with using a S.M.A.R.T. Chkdsk performs a couple of functions, depending on how it's run: ![]() It's not a terribly exciting tool - and running it can take some time - but it can really help prevent bigger problems and loss of data in the long run. The Check Disk utility, also known as chkdsk (since that's the command you use to run it) scans through your entire hard drive to find and fix problems. Here's how to use the Chkdsk tool that comes with Windows 10, Windows 11, and other versions of Windows What Is CHKDSK, and What Does It Do?
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