Unknown USB Device notification but nothing is plugged in

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posted on May, 21 2012 @ 12:17 AM
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reply to post by w3nd1g0
 


Thank you. I suspected a memory problem, too. This is a hand-me-down I inherited when my brother passed away. As long as I can get it to boot and do what I want it to, I guess I'll just deal with it until it gives up. I'll look into the "unidentified device identifier".

Thank you.




posted on May, 21 2012 @ 10:28 AM
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reply to post by N3k9Ni
 


Hi N3k9Ni this is probably not a memory error but a BIOS error or a error with the driver. I suggest that you may try to upgrade your BIOS and reinstall the USB controller driver.

1. Download the driver from the manufacture’s website.

2. Go to control panel>administrative tools>computer management>device manager.

3. In device manager, expand the "universal serial bus controllers" tree, and delete things from the bottom first, one by one, going upwards. Root hubs and then host controllers. Reboot.

4. Install the driver you download manually.

If the issue persists, please copy usbstor.inf and usbstor.pnf (c:\windows\inf) from another known Windows 7 computer to problem computer.





 
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