LAN is not showing up in my Windows 7 64-bit

[Mustafatech]

Atheros AR8162/8166/8168 PCI-E Fast Ethernet Controller (NDIS 6.20)PCI\VEN_1969&DEV_1090&SUBSYS_397817AA&REV_10\4&1570C37F&0&00E3This device is not working properly because Windows cannot load the drivers required for this device.

Bluetooth Device (Personal Area Network)BTH\MS_BTHPAN\7&1A3B3F9E&0&2This device is not working properly because Windows cannot load the drivers required for this device.

 

[LookinAround]

Is this a new build? Or did you just update your drivers? Before you try anything else, have you tried a System Restore to a date prior to when the problem started?

 

[IvanAwfulitch]

If the device isn't working due to missing or faulty drivers, you should probably go to the Lenovo support website and find the most up-to-date drivers for those devices. Judging from your directX diagnostic, your model 20157 indicates you have a Lenovo G580 laptop. If that's the correct model go to the following website, and select your model from the menu to locate drivers for your machine.

http://support.lenovo.com/en_US/downloads/default.page?selector=expand

Go find your Bluetooth/Modem drivers, and re-install them to see if this resolves the issue. It may be that the driver was corrupted, or a file necessary for its function was deleted/overwritten. Re-installing the drivers should help. While you're at it, you can see if there are any recently updated driver versions for your other components.