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A part of my hard drive is not accessible and when I format the drive it says format can not be completed and the drive is corrupted what should I do .... please help

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Run the chkdsk utility Click start run type cmd then type chkdsk/r/f which will scan for and attempt to repair any bad sectors and automatically fix any corrupt files on your hard drive another way of running the chkdsk utility Click start control panel administration tool computer management disk management right click on your drive select properties tools click check now click start two boxes automatically fix files and scan for and attempt recovery of bad sectors place then a tick in both boxes then select check now tart should schedule this task when restart have no input while the chkdsk utility is in progress any input may damage your computer check all power and data leads that attach from motherboard to your hard drive for secure dust free connections if it's a 40 pin flat ribbon type ide this will be the first to fail Hope this helps.

Posted on Jan 23, 2013

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Posted on Jan 02, 2017

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SOURCE: Corrupt External Hard drive

I have a 250 g ext.drive. I moved all my pictures from my pc to it and now the hard drive will not open. It is nearly full. It acts like there are no files on it. What should I do, unplug it?, restart the pc, plug it into another usb port on the pc.....help????...all of my pictures are gone!!!!!..........RB

Posted on Apr 02, 2008

SOURCE: my external hard drive is corrupt, i want my data back.

Dear,
Data can be recover but the drive must be accessible by OS. As you write windows vista says drive is not accessible and that the disk structure is corrupted and unreadable.Do one thing try the same drive at another PC. If it run on that PC copy the data to that PC. Now format the drive and paste the same data back to your drive. But, if same thing happend then there are chances of fault in the driveand for this you shuld visit to the service cetre but, they are not responsible for the data.

Thanks & regards,
Rakesh Kumar

Posted on Apr 06, 2009

  • 597 Answers

SOURCE: Vista. Formatting my USB Flash Drive

I think the reason it was telling you to format the flash drive was that it couldn't read the FAT table on the drive probably because the drive was damaged. Stands to reason that when you try to format it, because it's damaged, you can't do so. I have seen a lot of bad sandisks. I think a lot of people pull them out of the USB port while it's still being used without "Safely Removing Hardware" and it damages them. The following article may explain why.

The "safely remove hardware" bit is used because removable drives like USB sticks and camera memory have a file system on them just like your hard drive does. Most of these drives are small (<= 32 GB) so they use FAT16 as the file system type. FAT16 is an older file system and writes to the disk are simply done on demand. If the power to the machine is cut or the drive is simply yanked out during a write, this will result in incomplete data and possibly a corrupted file system on the drive. The "Safely Remove Hardware" bit calls for all programs accessing the drive to complete whatever reads/writes they need to as the drive will be removed. When all I/O is complete, the OS removes the drive from its list of usable drives and then pops up the bubble telling you it's safe to remove it.

If you formatted your memory card/USB stick yourself and put a journaled file system like NTFS, ext3, XFS, ZFS, HFS+ or ReiserFS, then the removal is different. All writes to the drive are first written to a journal, which is a temporary space on the drive. Once the data is written to the journal, then the data in the journal is written to its final location on the drive, overwriting the original data. Yanking out the drive will cause the following things to happen:

1. Yanking the drive out before the data has been completely written to the journal causes the original data on the drive to remain safe. The changed version of your file that was being written to the journal is lost as the FS sees that there is an incomplete write to the journal and flushes the journal the next time the drive is accessed.

2. Yanking the drive out after the data is written to the journal but before it can be completely written to the file system results in the partially-modified file in the file system being replaced with the good copy on the journal the next time the device is accessed. The user would never know that the final write never completed.

3. Yanking the drive out before any writes to the journal occur or after the data from the journal was successfully copied to the file system cause no issues as the drive is idle.

Safely removing a disk with a journaled file system causes the same actions as with the non-journaled file system but will also cause the disk to make sure that all of the journaled data has been written to disk successfully. Journaled file systems are more modern and much more reliable than non-journaled file systems. They still should be removed safely, but the consequences for not doing so are basically that it takes a longer time to access the disk upon the next access (due to journal-file comparison and flushes.)

The reason that journaled file systems do not commonly appear on UBS sticks or camera cards is because of Microsoft. Most people run Windows computers and Windows computers can only recognize FAT16/FAT32 and NTFS file systems out of the box. ext3 support can be easily added via a driver, but the other file systems require some external program to access (ReiserFS) or are completely unreadable in Windows (XFS, ZFS, possibly HFS+ as well.) NTFS isn't used on removable devices because it is covered by Microsoft patents while the FAT file systems are direct descendants of the original DOS file systems and are in the public domain. Device makers would have to pay MS a royalty fee for every device shipped if it was pre-formatted with NTFS. So the device makers have a few options:

1. Ship the drive with FAT formatting for free even though it's sub-optimal.

2. Ship the drive with NTFS formatting and pay MS $0.25 (IIRC) per unit shipped.

3. Ship the drive unformatted for free and require the user to format it on their computer, where they can format NTFS for free. This axes out-of-the-box working ability.

4. Ship the drive with ext3 for free and require that the users download the Windows ext3 IFS driver for free. This also axes out-of-the-box working ability and renders the device unusable on computers where the user doesn't have admin access to install the ext3 driver (work computers, public terminals.)

Most manufacturers want easy-to-use and cheap rather than good so they ship FAT-formatted drives. I leave mine formatted as FAT as cameras won't support anything but FAT16 and since I don't run Windows, I can r/w to FAT but basically only read from NTFS (write support is VERY limited.) I'd simply format my USB stick ext3 and be done with it, but I use my drive a lot on university computers and I highly doubt that the techs would install the ext3 drivers for me.

Posted on Oct 03, 2009

  • 923 Answers

SOURCE: external hard drive not detected

Check your jumpers on the hard drive. DON'T leave it connected very long if the jumpers are not set for master / slave (furthest away/ closest to the IDE port on the computer or it can mess up the circuit boards on one or both drives! If you are using only one hard drive, set the jumper(s) for "cable select" (often abbreviated CS). If it still doesn't detect the drive, the drive may not have an "active" partition on it. You can solve that by booting to your OS installation CD -- assuming you have one!

Posted on Feb 02, 2010

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A partition of my hard drive is not accessible and when I format the drive it says format can not be completed drive is corrupted what should I do.... please help!!!


You can try with this corrupted partition recovery software. I have utilized it, it works well. It has recovered my lost partition containing important data. You can check with the link for further details- http://www.macpartitionrecovery.com/corrupted.html

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Is not accessible , the disk structure is corrupted and unreadableWhat's your problem?


The hard disk could be faulty.
Try formatting the external hard drive again.
If this does not work then most likely the hard drive is faulty and needs to be replaced.
NOTE you will not be able to recover your data when you format the hard drive.

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Error message that says Drive is not accessible. The file or directory is corrupted and unreadable.


try other usb port, or other computer and see whether the hdd is detected. If still not, try to go to device manager ( http://www.computerhope.com/issues/ch000833.htm ), and then assign a drive letter to the hdd. After that, try to access it from Computer, if not able to access it, format it (use quick format) and then use asoftech data recovery program to recover your files.
http://www.asoftech.com/adr/

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a corrupt firmware problem, try to visit Sandisk for any utility that will fix your problem, or you can try formatting the flash drive using HP storage formatting utility which can be downloaded on the link below:
http://en.kioskea.net/download/download-127-hp-usb-disk-storage-format-tool

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Files not read & reading files format not occured only show the message box H:\ is not not accessible &not readable


1. may be ur flash drive corrupted, try formating using HP Usb format tool.. google it.
2. still ur not able to format, ur flash chip is damaged, find a new flash drive.,

VOTE for me.

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I cant access my external hard drive


Either the hard disk has become corrupt or the OS that was installed is not being recognised now. Try making it slave or secondary and see if the pc is able to detect it then recover the data that you want to save else format it.

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maybe your usb files are corrupted ,do the quick format

start--------right click on computer then click on manage then device drivers ,see if usb drive right click then format

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Can't formate pen drive


Right click on start button and choose explore.
Find the pen drive in the file list.
Right click on it and choose format, then format it with FAT.
If this doesn't work your drive may be corrupted.

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it sounds like hard drive data may be corrupted. This could be due to a number of things. A power failure, hardware failure etc.. If the drive will not even let you access it you'll probably have to just format it im afraid.

- John

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Pen drive problme


you need to reformat the flash drive. right click, click format (assuming Windows XP), then format with the default options (do not quick format).

If it will not format, it is corrupted, in which case it is worthless, for all purposes.

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