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[SOLVED] File or directory is corrupted or unreadable

This is a discussion on [SOLVED] File or directory is corrupted or unreadable within the Hard Drive Support forums, part of the Tech Support Forum category. F:\ is not accessible The file or directory is corrupted or unreadable I see this in 'Manage / Disk Management'.


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Old 04-02-2008, 01:07 PM   #1
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F:\ is not accessible
The file or directory is corrupted or unreadable

I see this in 'Manage / Disk Management'.

I am running XP Pro/1GB-RAM, and this is one of two ~~80Mb partitions on a 160GB Seagate PATA Barracuda, neither of which is my boot partition. The other partition mounts in WinExplorer and its status is 'Healthy'. I also have a large USB-connected drive for moving files into.

I d/l'ed testdisk_win but have not run it yet. A sticky suggests I need to ask for advice is a partition is hidden. I am not ignorant of drive problems but I'm not a fix expert either.

Fortunately I have another puter, networked with the afflicted one, where I can email and read instructions if I need to shut down the afflicted one.

This problem happened some time ago when the power went off. I had everything conected to an APC SurgeArrest at that time. But I don't know if the device had good MOVs.

Wondering if I should run testdisk now or do something else first. I know you guys help, so I'll thank you in advance.

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Old 04-02-2008, 01:45 PM   #2
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run
chkdsk /r

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Old 04-02-2008, 01:54 PM   #3
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chkdsk f: /r

"The type of the file system is NTFS.
Unable to determine volume version and state. CHKDSK Aborted."

then doing chkdsk /r

"The type of the file system is NTFS.
Cannot lock the current drive.
..in use..."
Meaning, I assume, it cannot run all the partitions, particularly c:
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Old 04-02-2008, 02:05 PM   #4
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chkdsk should run when you reboot the computer
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Old 04-02-2008, 02:12 PM   #5
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I'll try to do that and the reboot next. At the moment chkdsk g: /r is running on the other drive's partition, g: after it gave me the option to unmount it. (This takes awhile because both partitions are/were pretty full.)
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Old 04-02-2008, 02:12 PM   #6
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Yes, chkdsk should run at startup.

What's installed/placed on the F drive?
Please post a screenshot of Disk management.

Run TestDisk again, but follow these steps:

A. At the first window, select “No Log” and press the <Enter> key.
B. Select which drive to analyse, choose “Proceed” and <Enter>.
C. Select partition type – Intel if it’s a PC then <Enter>.
D. Choose Advanced > press <Enter>.
E. Choose Boot > press <Enter>.
New screen - please post back with a screenshot.

How to post a screenshot.
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Old 04-02-2008, 02:59 PM   #7
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This is the screen shot of disk managemen showing C, F, G

F: is the one I need to restore.

Click image for larger version

Name:	f-drive.JPG
Views:	1949
Size:	65.7 KB
ID:	25925

I'll run testdisk in a while and upload that screenshot.
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Old 04-02-2008, 03:01 PM   #8
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Also the partition shows up in My Computer but I get that same alert...

F:\ is not accessible
The file or directory is corrupted or unreadable
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Old 04-02-2008, 05:24 PM   #9
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F is showing no file system is there supposed to be something on it
if not format it
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Old 04-02-2008, 07:58 PM   #10
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Yes, there is supposed to be a lot of stuff on it, maybe 60GB out of the 75 formatted.

I could not get it to do a chckdisk /r on the F: drive, even after I set it to do one on reboot and then rebooted; it did do one on C:

Working on testdisk now, but I don't see a Boot option in the Advanced section.
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Old 04-02-2008, 08:36 PM   #11
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OK. I went thru the testdisk procedure down to :
D. Choose Advanced > press <Enter>.
E. Choose Boot > press <Enter>.

This is the screenshot of the resulting partitions. I wasnt sure what the 2nd one listed is, maybe the entire drive, but I found a Boot option on the 1st listed partition.
Attached Thumbnails
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Name:	testdisk2.JPG
Views:	2419
Size:	34.7 KB
ID:	25931  
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Old 04-02-2008, 08:41 PM   #12
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And I found this o the first partition after I ran the Boot opton. It seems the program found the file table and its backup, but somehow the partition isnt bootable. I do see that the size is about right. I don't know if I should select either of the options.
Attached Thumbnails
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Name:	testdisk3.JPG
Views:	1345
Size:	43.6 KB
ID:	25932  
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Old 04-02-2008, 09:51 PM   #13
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I went to http://www.cgsecurity.org/wiki/Advan...and_MFT_Repair and read a little bit. Looks like the Boot Sector and its backup are good. Looks like the Master File Table and/or its backup is bad. If so, looks like I need to select 'Repair MFT'.

A confusing thing is the alerts I got don't match what is noted in the web site. I await your suggestions now before continuing.
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Old 04-03-2008, 03:18 AM   #14
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Yes, select "Repair MFT".

If that doesn't help:

A. At the first window, select “No Log” and press the <Enter> key.
B. Select which drive to analyse, choose “Proceed” and <Enter>.
C. Select partition type – Intel if it’s a PC then <Enter>.
D. Select “Advanced” then <Enter>. The drive will be analysed.
E. Select the partition and choose "Type", then <Enter>.
F. Choose 07 (NTFS), press <Enter>.
G. Confirm by typing "07", press <Enter>.
H. Choose "Boot", <Enter>.
I. Select "Rebuild BS", <Enter>.
J. Choose "List". <Enter>.
K. Can you see your files? If so, choose "Write", <Enter>.
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Old 04-03-2008, 12:41 PM   #15
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Rapairing the MBR did not help, as it and its mirror were both found to be bad. The List option only poinited out that the error exists no files). So I did the Rebuild BS as described above. That did not fix anything either. After this I did the List again and it states, 'Can't open filesystem. Filesystem seems damaged.'

The program shows an option to write a new MBR to the first sector (it says write the MBR signature to the MBr sector). Also there is an 'expert' mode and a Superblock search. Their website refers to 3 commercial products. <---Those are the only options I know about at this second.
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Old 04-03-2008, 12:50 PM   #16
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You can use TestDisk to write a new standard MBR, but I doubt that will help.

Try GetDataBack.
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Old 04-03-2008, 01:37 PM   #17
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OK. Not sure if writing a new MBR will lose any files on the good partition, so.... Next for me is a hardware step--set up my new USB external case with my 500GB drive, then I'll make a backup of the good partition and have space to recover anything from the bad one if I need to go to a commercial product. After the backup, I'll try to write the new MBR with testdisk before I spend money for software that may or may not work. Which is always a last resort for me.
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Old 04-05-2008, 10:38 PM   #18
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Well, I've exploited Testdisk as far as I can with no recovery of the missing first partition. I backd up what I could from the second (all except 4 folders) and did the new MBR write.

I went further and downloaded the trial versions of GetDataBack and even DiskExplorer. GDB only found data on the second partiion, including the missing 4 folders I couldn't get with just windows tools. GDB seems to find nothing at all on the first partition. And I think that is odd.

Going to explore more with the GDB series and with ZAR.
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Old 04-06-2008, 05:32 AM   #19
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If GDB doesn't find any data I doubt other (commercial) programs will find anything at all.

Some free programs:
Recuva
Roadkil's Unstoppable Copier
File recovery and Smart recovery
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Old 04-06-2008, 12:58 PM   #20
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I tried ZAR on the 1st partition which seemed not to be usable, and I found a LOT (most of everything) on it. Using ZAR I also looked at the primary boot sector and found a couple of values that seem very wrong. I'm attaching this info in hopes of getting some sort of interpretation.

First is a view of the MFT (i think, ZAR0.jpg) then

a view of the partition table (i think, ZAR1.jpg) where the last two values seem way off then

a view of some first sector of the partition table 1 (i think, ZAR2.jpg)
Attached Thumbnails
Click image for larger version

Name:	ZAR0.JPG
Views:	1506
Size:	78.0 KB
ID:	26085   Click image for larger version

Name:	ZAR1.JPG
Views:	957
Size:	73.6 KB
ID:	26086   Click image for larger version

Name:	ZAR2.JPG
Views:	813
Size:	52.9 KB
ID:	26087  


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