Solved: m17 R4, keyboard stops working, Unknown USB Device (Device Descriptor Request Failed) - Dell Community
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Amazon.com: Universal Pairing USB Receiver for Dell WM527 WM514 KM714 KM717 WM326 WK636P Keyboard and Mouse : Electronics
Optiplex 7010 Mini Tower, Win7Pro): USB Controller not installed, Need Resource ISO - Dell Community
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