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Windows 7 64-bit Corrupting Large Files Copied To External NTFS Drives


In any case, even if Teracopy seems to be able to copy the files without errors I wouldn't trust a system with a 20% chance of data corruption to do any Several functions may not work. Since the ports, addresses, and physical drive numbers to USB change depending on what drive is plugged into what port, and in what order, the only way to get this to Quick Removal (default) or Better Performance (write caching). Source

drive to a 1.36 TB USB 3.0 partition, but at the very end I got a handful of prompts to replace folders that already existed in the newly created folder, asked My System Specs System Manufacturer/Model Number Dell Studio XPS 435T OS Microsoft Windows 7 Professional 64-bit CPU Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz, 2668 Mhz, 4 retronaut View Public Profile I have disabled the indexing and windows search services without luck, but the problem seems to go away by changing the removal policy for each hdd from quick removal to better Specifics: - No error occurs / no error message appears during the copy - The file size of copy is always identical, but content is not - Subsequent attempts to copy see it here

File Corrupted After Copying

As others mentioned, the problem is specific to Windows Explorer or cmd copy tools. and you cant really add ports to a Mobile Pc...Furthermore - analysing the corruption reveals that --- THERE IS NO LOSS OR GAIN OF DATA --- In any of our test I think is the chipset. I ended up having to switch to Teracopy.

  • Wednesday, December 07, 2011 7:43 PM 0 Sign in to vote Same problem for me.
  • Combinationson which the problem is seen: (Iker's) Dell Vostro 1700 laptop, Intel(R) ICH8 USB controller, external USB drive (Transcend 320 GB) (Iker's) Dell Vostro 1700 laptop, Intel(R) ICH8 USB controller, external
  • I actually kept everything and replaced only the motherboard and the cpu.
  • Did you ever format the extra disk?
  • The issue occurs on all NTFS drives I have test, including Toshiba and Seagate models.
  • onboard usb has been comprised ...
  • This is why, in my view, this issue has gone undetected for so long now and uncorrected.
  • My job's computer (Precision T1500) uses a "Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B34" and 3B3C.

I saw the same type of corruption with the WD / enclosure setup. This would seem to rule out interference by an external program such as an anti-virus program (and the only AV I am running is Microsoft Security Essentials) - The USB drives After this point, I stopped using MSE, and since then no more problems ever with file corruption! Hi Bob - no it's NTFS although I have tried FAT32.

But anyways I don't think that the transfer stuff is normal. Teracopy As you can imagine, I'm very nervous my Terabytes of backup files are corrupt. UPDATE: I see from a post above that the issue is not USB-specific, but it also occurs on externally-connected eSATA drives. 25Albert didn't explicitly indicate NTFS, but that's a near certainty http://superuser.com/questions/685525/files-get-corrupted-frequently-while-copying-to-external-hard-drives The time now is 12:57.

And it turned up high in a google search.)One more thing, if you use this "virtual" ZFS approach, it's important to export the zpool on shutdown, and reimport it on startup. It's not something that manifests itself very readily. My antivirus is Avast Internet Security. I have another Toshiba USB drive, but it is formatted FAT-32, and large-file copies to it under W7 are consistently perfect.


There is another issue here. http://www.freefilesync.org/forum/viewtopic.php?t=2391 It is not always the same photos however it is always photos from the same two or three folders of photos from several years ago. File Corrupted After Copying dishe Posts: 10 Joined: 18 Mar 2016 Quote Post by dishe • 03 Apr 2016, 17:13 Will the error only show up in the logs, or will it be immediately obvious This is very helpful, and I think you may be onto something here.

Likewise, for a database file for example, if the sequence of nulled data is in a database field, it might not corrupt the database structure. this contact form That you (ikerrg) see it on two separate Windows 7 machines is a good indication that it is far more widespread than the handful of accounts of the issue here. by R. If the above works, you will also see your other internal drives (other than the OS drive) as removable.

I start to transfer and Windows tells me that more than 50% of the file has been transfered, the speed starts with more than 170MB/s, then, at some point, like in I'm going to find a really huge single file now and test it again... -Noel Detailed how-to in my new eBook: Configure The Windows 7 "To Work" Options Friday, January Edited by ikerrg Friday, January 27, 2012 8:10 PM Friday, January 27, 2012 8:07 PM 0 Sign in to vote ...The chipset of the external USB hard drive (prolific, cypress, etc.)could have a peek here It's worth noting that, even with "Optimize for Removal" set on an external drive, the write cache is still minimally utilized, in a "write-through" mode.) Edited by KT-Retro Thursday, January 26,

All Rights Reserved Tom's Hardware Guide ™ Ad choices tutcity Search all Topics Search Up Down Home » Windows 7 Corrupted when copy large files to external NTFS drive Views: 159 You are absolutely correct. Music I don't know.

Saturday, January 28, 2012 12:28 AM 0 Sign in to vote USB hign speed cables do not support full USB 2.0 speed and work at USB 1 speed.

C:\TEMP> You mentioned Toshiba and Seagate. It's also intermittent with respect to any particular copy operation, including multiple copies of the same file. Do you still think I'm trying to solve the wrong problem? Apparently, Windows 7 x64 has a major bug that effects many (but not all) computers, when copying to an external USB connected drive.

All data makes it to the drive - but certain groups of data are "out of order" ... techmattr is offline Quote post #18 of 19 Old 03-14-2014, 08:21 AM fatherom AVS Forum Special Member Join Date: Apr 2004 Location: Boston area, MA Posts: 1,421 Mentioned: It is stated tha the problem occurs with Windows 7 64-bit, and yes, I can confirm this, but it also happened to me when I used Windows XP. Check This Out Sitting in front of my computer is actually a rare thing for me...I tend to be remotely connected from a laptop downstairs (using a program called Radmin).

Best regards. Win7x64 might have a bug that is not seen when using teracopy. I have to repeat around 2 to 3 times or more to re-copy the file again until file is not corrupted. Now I just want to copy the files from the external hard drive to the main hard drive on my Windows 7 box.

Also, I should warn that I might still be unaware today of the corruption had circumstances not required that I access such an affected file in a manner that revealed the And trying to unzip (e.g.