The disk in my laptop has become inaccessible after I changed the cluster size.
When I try to boot up, I get the laptop's proprietary screen as normal followed by a few seconds of the Windows XP start up screen followed by a brief flash of a blue screen, which begins: "A problem has been detected and Windows has been shut down to pretect your computer. If this is the first time..."
When I put the disk in a caddy, Windows XP reports that the drive "is not accessible. The file or directory is corrupt and unreadable."
I used Partition Magic (version 8.0) to change the cluster size (from 512kB to 2kB), running it from disk rather than the desktop. PM reported the process complete but also reported error #728 (with no other information). The laptop then wouldn't start up.
If I run PM from disk, it correctly reports the disk size as well as used and unused space. It also reports the following errors.
Error #1657: MFT mirror data position mismatch
Error #501: Cross-linked files were found
Error #745: [No message]
What I've tried
I've run fixmbr and fixboot in Recovery Console (from disk). When I type "dir" at the C:\ command prompt in Recovery Console, it gives: "An error occurred during directory enumeration."
Can anyone advise me how I can get this disk up and running again, or at least recover data from it? Help would be much appreciated!
The disk was running Windows XP (SP3). The file system is NTFS.