| Windows is not controlling the wireless settings The majority of wireless cards not only come with the required drivers but also there own third party software, this usually works very well, but if it takes control and manages all the wireless settings meaning you cannot view wireless networks though the Windows wifi networks screen, then you can either use the third party software or you need to set Windows to be the default Wireless management software. To change this option go to view all wireless networks and select – change advanced settings and select the Wireless Networks tab – make sure Use Windows to configure my wireless network settings is selected 
Make sure Windows is set to manage wireless network settings
Wireless card is switched off Many laptops have a physical switch to turn off the wireless network card, normally situated on the front of rear of the case. Built in laptop wireless cards can also be disabled or enabled from within the BIOS Software drivers are not installed correctly or functioning Was the wireless card installed before its software drivers, a common mistake is to install the hardware before the software usually then Windows has no where to look for the drivers, even if it asks for the CD and you manage to load just the drivers it still may not work due to not all the required software being installed, many wireless cards don’t only come with drivers, but there own wireless software which in many cases works better than the default Windows wireless management software. If you have installed the Wireless card before the software, you should still be able to run the installation CD install all of the software, and then go to Windows Device Manager – Right Click on my Computer – select Properties – Hardware tab – Device Manager – Right Click on the Wireless card – select Uninstall and then Right Click on Network Adapters and choose Scan for Hardware Changes – this should now pickup your drivers and recognise any other required software. If you cannot view wireless networks is it a signal strength problem?
A weak wifi signal means a slow internet or network connection, read more .. More on Wireless networking
Looking to setup a wireless network or add to your existing? Is the router functioning Lastly is the router functioning ok? If your laptop can see other wireless networks just not your own then its going to be the router. The real definitive test is to use another wireless computer and see if you can see yours or any other wireless networks in the area, this confirms an issue with your Router or Computer Notes
Regardless of whether you use Windows or your Wireless network cards own software to manage your Wireless connections you’ll need to enter the Wireless networks security credentials for each as they don’t share any setting or resources between them. | 
