Security News > 2020 > December > Microsoft fixes Windows 10 chkdsk bug causing boot failures
Microsoft has acknowledged a new issue impacting Windows 10 customers that might cause booting to fail on devices where the chkdsk tool has been used to repair logical file system errors.
Chkdsk is a command-line utility that can be used to check a Windows device's volumes for file system and file system metadata logical and physical errors.
While Microsoft doesn't say which Windows 10 versions are affected by this new known issue, the bug was acknowledged on the dedicated pages for the KB4592438 and KB4586853 updates issued for Windows 10 versions 2004 and 20H2 in December and November, respectively.
"A small number of devices that have installed this update have reported that when running chkdsk /f, their file system might get damaged and the device might not boot," Microsoft explains.
Mitigation on devices unable to boot after running chkdsk.
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