Chkdsk — On External Drive Fix |verified|
If your drive shows as RAW, chkdsk might report: "CHKDSK is not available for RAW drives." In this case, you can try to repair the partition structure using tools like or recover data first, then reformat the drive. Conclusion
If the drive has severe corruption, use the flag instead:
Command Prompt gives you more control and is often more effective for stubborn drives.
/r : Locates bad sectors and recovers readable information (takes longer than /f ). /x : Forces the volume to dismount first if necessary. For a thorough fix, use chkdsk X: /f /r . chkdsk on external drive fix
If CHKDSK confirms the drive is a RAW system with no recoverable boot sector:
Ensure the physical lock switch on the drive (if any) is off, or clear the read-only attribute via diskpart .
Type the following command, replacing X with your drive's actual letter: chkdsk X: /f /r /f : Automatically fixes errors it finds in the file system. If your drive shows as RAW, chkdsk might
SMART monitoring tools flag reallocated or pending sectors. 2. Preparing Your External Drive for CHKDSK
Running CHKDSK on an external drive is one of the most effective data-saving techniques in Windows. However, the process is fraught with errors—RAW drives, access denials, and frozen scans.
/r : Locates and attempts to recover readable information from them. /x : Forces the volume to dismount first if necessary
: Examines basic file system structure and file name linkages. Stage 3 : Examines security descriptors.
chkdsk E: /f /r /x /b
When an external drive reports corruption, Windows marks the volume dirty. chkdsk performs a three-stage process: