Inserted a USB flash into a port without any recognition

August 28, 2012 at 21:04:32
Specs: Windows 7
inactive USB port when a USB flash is put into it. But same USB flash is recongnised in some other ports.

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#1
August 29, 2012 at 05:06:27
Try refreshing the "Root hub" entries in Device Manager > Universal Serial Bus controllers.

Right-click each "Root hub" in turn and choose "uninstall" for each one.
Do this for the "Root hub" entries only, NOT the "Host controller" entries.

Restart Windows and the Root hubs will be re-installed automatically.


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