Join our site today to ask your question. This was the source of very many upset people. Use the memory card as you would use any other drive on the computer. Consult the manufacturer of the device for support if the device still fails to display. If problems persist, continue using these steps. Test the USB device again.

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Unknown device in XP on a Compaq b laptop Maybe this will help. Note on archived topics.

HP Compaq nc Windows 7 Driver | Driver and Software

If cimpaq device is a memory card in a USB card reader, restarting the computer should correct the problem. Go to your video adapter in the device manager. Look inside the computer.

Yes, my password is: This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Eject feature in Windows Vista. USB device not detected by Windows.

Remember, no matter what, you will not have Aero, but everything else graphics-wise should work. Double click to reinstall the driver. Europe, Middle East, Africa. Turn off the computer, unplug the power cable, and position the computer so that you can easily work on it. There is a physical problem with the device or there is an issue with the device software drivers.

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Thanks so much, bellisimo. Welcome to Tech Support Guy! Message 1 of Message 3 coompaq You should now have fixed the problem.

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When you have finished devicee with the files on a memory card, right-click the memory card icon and select Eject.

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Any experience with this particular machine? This may occur because Windows Vista does not detect that the USB audio device was removed, and is still trying to send uhknown from, or to, the unplugged device. I installed the drive nc620 that you gave the first person as an answer and one of my unknown is gone now. I then install all of our other crap, like adobe acrobatjava, office, etc. I recently got this laptop running smoothly compaqq and i have one code 28 i cant seem to findits listed as unknown device with a yellow question mark in device.

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By using this site, you accept the Terms of Use and Rules of Participation. The front USB ports do not work If your computer came with USB ports on the front of the computer and they do not work, a cable inside the computer may have become unplugged.

Solved: Compaq nc6220 problem

Connect to the Internet if devvice computer is not already connected. To reduce the chance of ESD damage, work over a noncarpeted floor, use a static dissipative work surface such as a conductive foam padand wear an ESD wrist strap connected to a grounded surface. Their replacement is available online here: So make sure you install: Continue if the device name cannot be found in Device Manager. Message 9 of