my computer does not recognize an external removable storage?

Question

this is a dell dimension 4550 computer running win xp sp2

Answer 1

Problem With USB Port – Can’t Reinstall USB Device – Plug & Play Problem
- With Windows Plug & Play feature, Windows is supposed to recognize any device plugged into a USB port -- the problem is after it recognizes something once, Plug & Play will never again try to install that device. You need to erase all memory of the device (printer etc) from the computer.
- Right-click on My Computer, cl Properties, click Hardware, click Device Manager.
- Click on the plus sign next to “Universal Serial Bus.” Look for the problem device’s name and right-click. Now Remove. Restart and reinstall.

Source: Article by James Coates, Chicago Tribune.
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Note: I found that if I did not go through the “safely remove” procedure before unplugging a USB device, the computer did not recognize another item. I had to reinsert the first item, “safely remove,” then plug in another item. This must be like shutting down for USBs.