my laptop won't connect to the internet wireless?

[Jeremy]

I restored my laptop to factory settings the other day, and ever since then It couldn't find any networks. It works fine with an ethernet cable. It's windows 7, by the way.
In reply to Zoe: No. That won't work, i've already tried that. It can't find ANY networks to connect to at all.
It says "no connections are available"

[Zoe]

Check the hardware and cables
Use the following steps to verify that your modem, adapter, and router and access points are turned on and connected correctly:

1. Check your cable or DSL modem for disconnected cables or wires. Make sure the power cable is connected and the lights are on.
2. Make sure that the wireless router is connected to the power adapter and modem. Make sure the lights are on.
3. Reseat all the cables and power cords.

4. Click the Network Connection icon in the notification area and click Connect next to the name of the wireless network.

If the network name is not displayed, click the Refresh button to scan for wireless network signals.

For more visit below link - http://h10025.www1.hp.com/ewfrf/wc/docum...lc=en#N723