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Windows 7: strange usb copying behavior

11 Feb 2013   #1

Win 7 home premium 32 bit
strange usb copying behavior

yesterday i was copying a 6.8GB winrar file from usb to c drive,

the initial transfer rate was 1Mb/second as shown by tera byte, it took 1 hour to copy 40% of the file.

incidently my hand touched the usb drive while doing some other office work and the copy transfer rate shooted from 1Mb/second to 14Mb/second and the rest of the file took only 10 minutes to copy

My System SpecsSystem Spec
12 Feb 2013   #2
Microsoft MVP

Windows 7 Ultimate X64 SP1

did the file copy correctly then? That seems very slow to start, I usually get from 60-200MBs with USB 2.0 devices. Starts fast and slows down before copy is completed.
My System SpecsSystem Spec
12 Feb 2013   #3

Win 7 home premium 32 bit

yes the file was copied correctly
My System SpecsSystem Spec

12 Feb 2013   #4

Windows 7 Ultimate x64 Service Pack 1

Quote   Quote: Originally Posted by kf10 View Post
yes the file was copied correctly
It was probably not inserted well. Loose ports usually default to USB 1 then when you properly inserted it, it got it's full speed.

This is all just theory of course.
My System SpecsSystem Spec

 strange usb copying behavior

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