![]() ![]() ![]() I can also use any other USB stick or HD in any other USB port This only works until the computer is shut down, on a restart Windows detects USB Root Hubs and installs Device Drivers, and I'm back to the USB Device not recognised scenario again, when plugging in a USB stick. I can then access the stick contents normally. However, if after plugging in a USB stick I go into Device Manager, go to View Devices by Connection and open the tree down to USB2 Enhanced Host Controller USB Hub Unknown device, then uninstall the USB Hub, I immediately get a popup saying 'This device can perform faster if connected to a USB2 port'. The same problem with unrecognized USB memory sticks and HDs still occurs, even after updating the drivers and installing all the Windows updates. UPDATE: I've fitted a replacement HD into this troublesome Optiplex 380 and installed Windows 7 Pro on it from a Dell re-installation disk. ![]()
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December 2022
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