The same problem. I bought a USB port card.

來源: stocktiming 於 2012-10-11 13:25:24 [] [舊帖] [給我悄悄話] 閱讀數 : (729 bytes)
回答: 求救:PC所有的usb port都不工作 由 紅塵一笑 於 2012-10-09 18:29:37

I had the same problem with my desktop.

I went to the control panel--system--hardware--device manager and saw all the USB hubs worked properly. I could  not find any cause.

Then I had to buy a USB port card and inserted it to the PC's slot. (from the manufacture's website to find how to insert the card.)

I do not know a better way to solve the problem.

To prevent the same thing from occurring, I bought an external USB hub and connected it to one of the newly installed USB ports on the card. I connect all the USB device to the external USB hub.

Hope it can help a little.

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