I have a Windows 7 Pro 64-bit machine with an integrated NIC that will no longer see the NIC. It was working but the power supply was not supplying enough power. Replaced power supply with larger unit, now the system is stable but I can't get the NIC to come to life. Tried the BIOS settings. Also tried disabling in BIOS and adding a new PCI card, which gave the results that the driver could not be loaded. Tried second card, different brand, etc. same results. [Warning - THIS IS NOT A SIMPLE INSTALLATION ISSUE - so please, no "reinstall the driver" or "try another card" or "reseat the adapter" answers if you can help it...] I've done a million of these. Something in Windows is causing my issue and it may be related to a malware removal the client performed yesterday, a Fake Alert called Live Security Platinum. I have also tried system restore points which do not help. Is there a setting or a service that would disable all network adapters from loading correctly and prevent new cards from being installed correctly? Thanks.