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I recently bought an external hard drive with 500GB capacity. hard drive is still in new condition and vacant. but when I would copy a file larger than 6GB hard drive can not copy the file. if I copy the file size of less than 6BG, the file can be copied.

what causes it?

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Are you running a 32 or 64bit version of Windows 7? – qweet Jun 22 '12 at 13:10
What error(s) do you get when you try to copy files larger than 6gb? – Nima Jun 22 '12 at 13:14
What is the external drive formatted as? If its FAT32 that may be the issue. – OrionDarkwood Jun 22 '12 at 13:15
What error you get when you choose more than 6-GB data? Also is your HDD format in NTFS or FAT32? – avirk Jun 22 '12 at 13:23

Some filesystems (such as FAT32) have a 4GB limit on file sizes

Some cheap hard drives are fake

fake HDD 1 fake HDD 2

share|improve this answer
And that's how SSD was invented. – Nima Jun 22 '12 at 14:04
+1 for answer with really nice pictures! :D – speakr Jun 22 '12 at 14:11

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