My allienware aurora r7 bluetooth module was suddenly dead today. In settings, it displayed that bluetooth had been shut down. In device manager, there was no bluetooth icon but only this -- Unknow USB device (Device descriptor request failed) with a yellow triangel on the icon. I contacted MS technical support but nothing solved. And after their instruction, I couldn't find the bluetooth icon even if I checked the "Display hidden devices" option. Finally they told me to come to Dell for help. I got really confused. Could someone help me with this? I searched on Google and tried manys ways but none of them worked.

BTW: I called Dell technical support. I just wanted some instructions to solve my problem. However, my warranty is expired. He said he could not give me any help unless I bought a new warranty. The free option is to ask this community or YouTube. Why? No warranty on support or even not try to support? Never heard of that. I used to heard that allienware has the best customer service. But this expericence made me really disappointed.