[Libusb-win32-devel] vista issues uninstall problems

[Bruce B. <bb...@sy...>]

Maybe this will help, though I don't use Vista. But recently my PCs 
developed a usb issue (extreme delay, can't "find" COMXX one second 
after opening it a second before) on virtual serial ports, when 
trying to program Sun SPOT devices. After un-installing Bluesoleil 
Bluetooth drivers, and libusb (the BT driver turned out to be the 
problem, exacerbated by RXTX polling through an enumeration of all 
UARTs even BT virtual devices), my hardware UART on a T43 notebook 
would no longer work with any serial program at all.

The not obvious solution was to uninstall the COMX driver in Device 
Manager (this is WinXP), then reboot. WinXP then loads a new and 
uncorrupted copy from its cache of such things. Now it works OK.

I have had to take a similar tack with USB virtual serial ports.

Maybe this will work for your problem too - uninstall all the 
affected USB devices and then reboot and see if that restores things 
to a virgin state.

best regards

Bruce Boyes



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