I am using an HP DM4, i5 with 4 GB RAM, and a 500 GB HDD with Windows 7 Home Premium on it. I have installed Norton Internet Security 2011.

Since a few months ago, I'm experiencing problems while copying from my system to any flash drive, or from the flash drive to system. It copies too slowly, and sometimes it will say "the device can't be found" (or similar messages).

I also have an external 500 GB hard disk, and whenever I connect it, it works perfectly fine without only problems.

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migrated from serverfault.com Oct 16 '11 at 11:51

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