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Can't copy files from USB drive to Lion OSX

I just got the new MacAir and wanted to copy files from MacBookPro via USB drive.


Anytime I copy files from the drive to Air, the file dissapears (literally) as soon as copy complets.

The size or content does not matter.


I can not copy dmg, but can mout the same from USB drive and install applications.



Any ideas?

Mac OS X (10.7)

Posted on Jul 22, 2011 11:37 AM

Reply
62 replies

Oct 16, 2012 11:47 AM in response to Odessit

Had the same problem. Now resolved. The flash drive must be formatted as a "exFat" drive.


On the iMac open: Finder > Applications > Utilities > Disk Utility. Select the flashdrive. Format the drive as exFat. Default size.


On the PC: Start > Computer > Select the flash drive. Right click > select Format > select exFat > Default size.


Worked for me!! := )

Can't copy files from USB drive to Lion OSX

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