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Kudos0

(Dos based) Norton Disk Editor and cluster recovery

I recently deleted a personal file directory. It can't be recovered from the recycled bin. Luckily for me, the files are located at the back of my hard drive and are perfectly defragmented. I'm using Norton's old Dos-based "Disk Editor" to repair the damage. Unfortunately it seems that I have to manually edit the FAT one allocation unit at a time. In other words I have to type 15,917 15,918 15,919 ..... 16,102 <EOF>. I don't have the help files for this Norton program, so I don't know if there's a shortcut or a hot-key.

If there is no shortcut or hotkey which automatically inserts the next number, is it then possible to link a contiguous series of clusters to a file in the exact same spot? (Alt-W will write it elsewhere on the disk.)

Thank you.

Replies

Kudos0

Re: (Dos based) Norton Disk Editor and cluster recovery

As long as you have the old directory entry, even if it is “deleted”, you don’t need the FAT because the user asserts that the file is not fragmented. All you need is the starting cluster number (it is there in the directory entry) and the size. Cluster size varies by partition size but once you know that, you can calculate the bytes per cluster. Then math that with the file size in the directory. You now know the total clusters that were in the file. Do an alt-c (I'm not that familiar with Disk Editor so this may not be accurate) to select a cluster range when viewing the disc logically (not physically). Grab the number of clusters that the file needed and then save them off to different media.

As a reminder, the sectors per cluster value is in the boot record and there is always 512 bytes per sector.

Message Edited by erik_carlstrom on 05-06-2009 11:04 AM
Kudos0

Re: (Dos based) Norton Disk Editor and cluster recovery

I tried DOS undelete. Believe it or not it actually worked! I don't understand why since the files themselves weren't deleted, they just had cluster chain errors.

Undelete prompts the user to type the first letter of the file name in order to recover it. Oddly, it won't accept the correct letter because the file still exists - confusing huh? :) So I gave each file a new initial letter, and then went back into DOS diskedit to give each file its original initial letter to avoid LFN conflicts.
Kudos0

Re: (Dos based) Norton Disk Editor and cluster recovery

Glad to hear you found a work around. 

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