What options in Chkdsk for windows 8 check for bad sectors?

Rodion15

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Sep 11, 2011
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I'm learning about the new chkdsk suffixes in Chkdsk such as /offlinescanandfix and spotfix. Which of these new options checks all sectors for bad sectors, such as chkdsk /r did?
 
Hey there, rodion15.

As far as the "new" switches go, they are all targeted for NTFS partitions. Basically you could go and use /oflinescanandfix or /forceofflinefix along with /scan instead of /r

Here's a bit of a description on those swtiches:

/scan - Can only be used with a NTFS disk. Runs a online scan on the volume.
/forceofflinefix - Can only be used with a NTFS disk. Must be used with /scan switch. Bypass all online repair; all defects found are queued for offlne repair (ex: "chkdsk /spotfix").
/perf - Can only be used with a NTFS disk. Must be used with /scan switch. Uses more system resources to complete a scan as a fast as possible. This may have a negative performance impact on other tasks running on your system.
/spotfix - Can only be used with a NTFS disk. Runs spot fixxing on the volume.
/sdccleanup - Can only be used with a NTFS disk. Garbage collect unneeded security desciptor data. Includes the functionality of /f.
/offlinescanandfix - Runs an offline scan and fix on the volume.

However I still prefer using the good old /r switch, even though nowadays it's basically targeted for partitions with file systems different from the NTFS one.

Hope that helps.
Boogieman_WD