network controller driver will not install on pavilion dv7-6c20us

After a new installation of Windows 7 64 bit, I was passing by and install all the drivers.  I can't get WiFi to work, it says the pilot "cannot properly installed.»  The wired LAN Controller and all other drivers seem to install, very good, but not wireless.  (I've tried a few)

Also, I went into the BIOS (which I've read here to try) to disable the saving of LAN, but this option was not there for me.

OK, I got it working.  I actually found some real advice on Yahoo Answers (I know, right?)

The driver who ended the work is here: support1.toshiba-tro.de/tools/updates/realtek-wlan/realtek_wlan_win7_2000016L_20110523.zip

These are the instructions that I followed:

You first need to know what model of network card you have in your system.
If you are using the network card on the motherboard, then you need to install the drivers for your motherboard CD.

If the network adapter is a PCI card, you must:

1. right click on MY COMPUTER then click MANAGE
2. open the Device Manager and right click on 'Network controller' (should appear with a yellow question mark) and then click Properties.
3. go to the tab "Détails" and you should see "Device Instance Id" and below, you should have something like this:

PCI\VEN_10EC & DEV_8168 & SUBSYS...

The parts that interest you are the codes after "VEN_" and "DEV_".

In my case, the codes are 10EC and 8168.
Go to www.pcidatabase.com and look up the first code (vendor code).
Click on the name of the vendor and search (CTRL + F) for the device code.
There you should find the model name and number of your network adapter. You can then search for drivers.

For example: search for PROVIDER 10EC and you should find:

Realtek Semiconductor

Click on the name of the seller and on the page that displays search 8168 and you should find:

Chip number: RTL8168/8111
Description of the chip: Gigabit Ethernet NIC (NDIS 6.0)
Notes: DRIVER for XP PRO SERVICE PACK 2

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