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I have not used my HP pavilion dv7-405 for a couple of years due to frustration. When this computer is on nothing else can get wifi and everything is kicked off! Just having it on kills our entire network even when the wifi is off on the computer.

Could you elaborate on the problem? This seems quite funny. ;d So when you turn on this laptop, it is completely taking down your entire home network, even if the wireless is disabled on the device? Do you have a server on this laptop with a DHCP role enabled? x'3