i had a 200 gig WD HD (with 2 partitions C and D) that became unbootable, so when i hooked it to another computer, the second partition where the data is stored is fine but C looked like it was unformatted. So i managed to move all the data out of D drive, merged the 2 partitions together and formatted it as an extended drive (not active); i even ran chkdsk /f /r afterwards and it showed minor inconsistencies,etc.. but not bad sector or bad clusters today when i was transferring files to it, it gave me an error that "The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume D" but when i tried to do a chkdsk, it wouldnt allow me to and i got another error message "Application popup: Windows - Corrupt File : The file or directory D: is corrupt and unreadable. Please run the Chkdsk utility. " i'm on windows 2kpro and so when i go to the computer mgmt console, it shows the HD is active (but it wasn't active before the error since i reformatted it); in window explorer, it looks as if it's unformatted; that's a very strange problem i'm running getdataback for ntfs right now hoping to retrieve as much data as i can b/c i recently moved a lot of data to it since it's used as a slave for storage. if u have any ideas, i'd appreciate your input very much! btw, i ran the western digital data lifeguard for windows program but i couldnt see anything that says it has error; idid printscreens for all of them in case anyone need to see them in order to help diagnose the problem better thank u

There is a problem with windows recognising HD's over 137gb.I'm not quite sure which versions of windows suffer from this tho? This may have a bearing on your plight? nf7-s v2.0 jou jye 550w psu Thermalright SP 97 xp2400+@200x11 fx5600@350&600 Thermaltake Lanfire WDCaviar 60gb Seagate Barracuda 80gb ;~}

hi, thanks for responding i dont think it's related to that b/c all of my HD's on that computer are over 137 i'm on win2k pro and all the HD's are NTFS IDE 1:160 gig seagate (master) +200 gig WD (slave and the offending dtive) IDE 2 : plextor dvd burner on the ultra ata card, I have 3 250 gig HD's taking up 3 slots plus, it did recognize the full 200 gig before the crash

I'm suffering with a very similar problem. The attached disk is a RAID 5 Voyager Unit, (7x36Gb drives) 210Gb Total mounted on a 2000 server. The system has been stable for over 6 months so I don't see an issue with Drive Size. Last week the RAID started to give errors which got progressively worse. Files corrupting all over the place :-( Chkdsk found loads of errors and the unit appeared really unstable even after several scans. As data is backed up, I decided to low level format, rebuild RAID effectively start again. Creating the RAID then the volume wasn't a problem but formating caused a headache, for some reason I couldn't format the unit. I even tried >format /fs:ntfs w: in DOS. All to no avail, it kept coming back in RAW format. I eventually used Paragon Hard Disk Manager which did the trick - but like you I'm getting these "Application popup: Windows - Corrupt File : The file or directory W: is corrupt and unreadable. Please run the Chkdsk utility." errors So if you have any thoughts on how to resolve the problem, I'd appreciate any input.