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On a machine, I dual-boot Windows XP and Windows 7 (both 32-bit).

Several external hard drives work well under Windows XP, but under Windows 7 none of them is shown as a drive in Explorer.

The only thing that happens under Windows 7 is: after plugging in the USB cable, the system recognizes a plugged device and shows the "safely remove hardware" toolbar-icon (which refers to some Bridge device).

What can be the reason?
What additional information could I provide to clarify the problem?

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Do they show up in Computer Management (Control panel, Admin tools)? – RJFalconer Jan 5 '10 at 13:43
up vote 3 down vote accepted

right click on Computer > Manage > Disk Management

if the drive is showing there, assgin a drive letter.

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