Short form: How do I "run an offline scan" in chkdsk?
Details:
I'm running Win 11 Pro and trying to examine and possibly resurrect an external NTFS drive which appears to be corrupted. Following the chkdsk docs in: https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/chkdsk?tabs=event-viewer
My first attempt was this:
>chkdsk f: /scan
The type of the file system is NTFS.
Insufficient storage available to create either the shadow copy storage file or other shadow copy data.
A snapshot error occured while scanning this drive. Run an offline scan and fix.
The documentation says that /forceofflinefix will "Bypass all online repair; all defects found are queued for offline repair (for example, chkdsk /spotfix).", so that sounds like the right thing. But I get the same error:
>chkdsk f: /scan /forceofflinefix
The type of the file system is NTFS.
Insufficient storage available to create either the shadow copy storage file or other shadow copy data.
A snapshot error occured while scanning this drive. Run an offline scan and fix.
So: how do I "run an offline scan"?
