Try doing it this way:
1. Go to the
Device Manager2. Select the
Unknown Device you need the driver for and go to
Properties3. Select the
Details tab
4. Set the
Property drop-down menu to
Hardware Ids5. Copy the first line, it should be something like:
PCI\VEN_8086&DEV_4237&SUBSYS_13118086&REV_00
6. Google the Hardware Id you copied (This should give you manufacturer and model of the device)
7. Instead of going to Lenovo's website, go to the manufactures website of your device (i.e. intel.com) and download the driver from their website.
If the above doesn't help, post the Hardware Id of the devices you need the drivers for and I will find them for you. Good luck.