HP pavilion g6-227sa: my laptop does not detect my wifi!

Recently, I changed my victory windows 8 for win 7. "I downloaded" network drivers "via the net and installed on my laptop, but to my surprise it detect other wifis, but it cannot detect my wifi. "I should say when I go on ' network and sharing Center"and then click "Manage wireless networks", I can't find anything.

I went to "Device Manager" excerpt "Network adapters", I find that 'Ralink RT5390R 802.11bgn Wi - Fi customize' is installed and when I rigt click it and hit on "scan for hardware changes" I think "Enternet Controller", "PCI Device", "Controller PCI of Communication Simple", "Controller of Bus SM", "Controller of (USB) Universal Serial Bus", "Unknown device" are not correctly installed.

Thank you before hand for your guide.

@Nikoo

OK, we're done with step 1.

Then, you have to go back to Device Manager and open the network cards.

Then right-click on your wireless device, and then click on uninstall.

Reboot the laptop and let Windows install the driver.

REO

Tags: Notebooks

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