USB 2.0 hub not working properly in XP SP2. And they told me the drivers should come with all windows XP SP1. After install either XP SP1 or XP SP2, the USB. If you are not running Windows XP SP1, install SP1a for security and reliability updates to the Windows XP family of operating systems. There is no benefit to.

I upgraded my PC to Windows XP SP2. I have two flash drives (memorex & simpletech) - both 256 MB.

And none of them appear in Explorer. In fact I get an error saying that there is a USB Power Surge on the Port, etc.

I dont even see any of the devices in Device Manager. Surprisingly, I have other USB devices like Web Cam and Camera and they work perfectly. Even they give an error about USB Power Surge on the Port but they still work. So thats all the more confusing. I have tried all kinds of stuff like: 1) Uninstalled all USB Ports and installed drivers again 2) Installed the latest Chipset drivers from Intel 3) Rebooted the PC with the Drives inside, etc. I have applied all Windows Updates too.

Please let me know of any other things to try. Appreciate any response. I upgraded my PC to Windows XP SP2. Japamala Prayer Malayalam. I have two flash drives (memorex & simpletech) - both 256 MB. And none of them appear in Explorer. In fact I get an error saying that there is a USB Power Surge on the Port, etc. I dont even see any of the devices in Device Manager.

Surprisingly, I have other USB devices like Web Cam and Camera and they work perfectly. Even they give an error about USB Power Surge on the Port but they still work. Joymii Apolonia And Carolina. So thats all the more confusing.

I have tried all kinds of stuff like: 1) Uninstalled all USB Ports and installed drivers again 2) Installed the latest Chipset drivers from Intel 3) Rebooted the PC with the Drives inside, etc. I have applied all Windows Updates too. Please let me know of any other things to try. Appreciate any response. Still problematic Thanks for the reply. Yes -- I forgot to mention that the drives work properly in other systems both Windows 2000 and Windows XP.

I did try the suggestions that you mentioned i.e. Notice the power settings as each device is plugged in. I found that when I use my web cam, etc. It does short the stuff and the power ratings at 250ma, etc. But when I plug in any of the USB 20 flash drives, I see nothing there. I even upgraded all the host controllers but nothing seems to work. Is there a possibility that the flash drives are USB 20 and not USB 11 and because of that something is going wrong somewhere.

This is because my webcam and digital camera work ok. My BIOS and Motherboard do have support for USB 20. And worst point is that these drives have worked before on the same machine. Thanks once again for your response. Unknown USB Device OK, when I plug in the Flash Drive and go to the Power Settings on the USB Hub a) Originally there were 6 ports available. B) When I plug the USB Device, I do get the following shown under the Power Tab: ----------------------------------------------------------------- Description Power Required -----------------------------------------------------------------?Unknown USB Device Unknown?Unknown USB Device Unknown 4 port(s) available 0 mA Why does it show it as Unknown USB Device. To the best of my knowledge, Windows XP comes inbuilt with support for these devices and doesnt need any drivers as such to be installed for flash drives.