Windows 10: Audio device suddenly disappeared from device manager

Hi,

I use speakers built in my monitor (LG 27UK850). Suddenly, they have disappeared as audio source from every place in system, even from device manager. I dunno what can I do to bring them back, any ideas?

submitted by /u/bajorro
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:)

 

Bluetooth Suddenly Disappeared - from settings & device manager

Number 1: Open up the devices window (search for Device Manager, and you will get the window).





Number 2: Open up the View Menu. When I selected "Show Hidden Devices", my Bluetooth devices and installed drivers appeared.





Now you should see Bluetooth on the device list. Click the arrow to open up the selections:






Number 3: I double clicked each of the 'devices' under Bluetooth (there were several on that particular computer). The message told me that the devices were'disconnected'. I right-clicked each of them and selected 'Update Driver". I chose to search the web for the updated drivers:





It updated one driver, but Bluetooth was still disconnected.

Number 4: Finally, I went to the web-site of the maker of that laptop and downloaded the most recent drivers to the machine. I unzipped them, and selected 'Update Drivers' again for the Bluetooth device on the machine (which unfortunately had a generic name like 'Win USB Bluetooth Device' so I wasn't sure I was selecting the correct thing).

This time, however, I chose "Browse my computer for driver software", and chose the folder to which I unzipped the downloaded driver. The driver updated and, lo and behold, the device connected.

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I'm giving you such a detailed description because it took me a couple of hours to find where the problem lay and solve it. Hope this helps you! If I've been unclear, please let me know!

 

No hardware listed in Device manager?

I don't konw whathappend but in Device manager and in my Network connections there is nothing where there used to be a Modem listed and all my hardware in Device Manager. What happend and how do I fix this?

 

Network devices listed under Unknown in Device Manager


I have a Dell Inspiron M731R laptop upgraded from Windows 8.1 to Windows 10 Home 64-Bit that suddenly quit connecting to the home network. Was using wireless, so switched to an Ethernet cable, but still no luck. I just discovered that ALL of the network-related devices are now listed under an "Unknown" tab in the Device Manager. A check of properties of each item in that folder says they are all working properly, but that obviously isn't the case. I tried uninstalling each of the 4 items, but when they are recognized again they still show up under the Unknown tab. Any suggestions would be welcome.