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Windows 7: USB ports only work after restart

25 Feb 2016   #1
kend0g187

7 Professional x64
 
 
USB ports only work after restart

I have an HP EliteBook 8460p running Windows 7 Professional x64. For no apparent reason, I started experiencing strange behavior from all USB ports. If I plug in a device, I hear 3 low-pitched tones in succession and the device does not work. In order to use any USB device, I must shut down the computer, plug the device in, and then start up, in which case everything works fine. I found one article suggesting to update the BIOS, which I did, but still the same behavior. Any ideas? Thanks!


My System SpecsSystem Spec
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25 Feb 2016   #2
kend0g187

7 Professional x64
 
 

Today my USB ports didn't work even after startup. I got a message "Device driver software was not successfully installed" and below it says USB 3.0 host controller driver failed. I tried to install the latest driver that I downloaded from the HP website, and it failed with "Error:- 1603 fatal error during installation".
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 USB ports only work after restart




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