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USB Hard drive issue - unable to copy large files

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#1 flyboynm


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Posted 07 January 2014 - 02:32 PM

I have a 1.5tb usb3.0 drive that I cannot copy larger files to - I get a 0x0000045D - I/O Device error - whenever I try to copy larger sized files - 7GB files or more.  It works fine with smaller files.  I have tried copying with regular "copy", terracopy and robocopy methods.  I have removed the USB device, uninstalled the driver, rebooted and then hooked it back up - no go.  I have removed the device with deleting the driver, rebooted and that didn't fix it.  I have tried it on another USB 3.0 port, no go.  Tried it on a usb2.0, no go.


Any suggestions?

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#2 SteveOC


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Posted 07 January 2014 - 02:37 PM

Check that the filesystem is not FAT32.


Steve O.

#3 rotor123


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Posted 07 January 2014 - 03:02 PM

As SteveOC mentioned, Checj for Fat32 formatting, It has a a 4Gb file size limit.


To check Open Computer, Right click on the External drive letter and choose properties. That will tell You NTFS or FAT32.


Good Luck


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