Having trouble transferring large amounts of data to a USB flash drive

tjlmbklr

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Feb 12, 2010
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I am trying to transfer over 19GB of data from a network location to my USB flash drive. This is something I have done many times on various USB drives. The location I am taking the data from is updated regularly so I use SyncBackFree to manually make a 1-to-1 copy once a month. I have done this with other USB drives with no issue. I lost my last 32GB USB drive so I bought a replacement. I formatted it and tried the transfer 6 times. I have tried using Teracopy, SyncBackFree, and the Windows Copy/paste function. I have also tried formatting to NTFS and FAT32.

Each time the properties of the new drive it will either say it has the same amount of files/folders size as the the location I am copying them from, but some of the folders it copied over are empty. Or sometimes it will only copy over 2/3 of the files on the network location. Then I will run SyncBack to fill in the blanks so to speak and it will eventually get to a point where it says my USB drive is full but technically its not. It's seems like it is allocating the space on the USB drive, but not actually copying the files over.

EDIT: Update, I tried transferring that whole 19.2 GB from the network location to my laptop and had no issues. So I assume this means the USB drive is bad?

I am at a loss.
 
Perhaps it a bad drive. Have you tried formatting from a different PC and copying files from another PC? If it doesn't work on any PC, I'd return it while it's under warranty.

Also, FAT32 can't use files over 4 gig, so if you are copying large files, make sure it's formatted as NTFS. I know you said you formatted both ways, which is why I asked if you tried it on a different computer.
 
It could indeed be due to faulty external hard drive. Test it with SeaTools for Windows:
http://www.seagate.com/gb/en/support/downloads/seatools/seatools-win-master/

It doesn't matter what brand the actual drive is inside the enclosure, SeaTools will test it.
Use the Long/Extended option for a more thorough test.
 

tjlmbklr

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I am somewhat familiar with Seatools. However I am not sure if this is an indication there is an issue; when I check the box for my USB drive then select 'Advanced Tools' in the basic menu, then it warns you of the dangers of using this and to press F8 to continue. I do, then the Advanced menu appears but when I try to expand it, the fist time the menu opens then closes then I can expand it again. I can for other drives though. But running the Long Generic test, it passes. So I am not sure what to think now.