Right, I have a Toshiba Satellite C660 with serial-Yb070677K. My compute came with Windows 7 home premium but I upgraded it to Windows 8 to see if I preferred it. I didn't so downgraded back to 7. Once logged on after the downgrade I notice a red X on the internet icon on my taskbar. I run the troubleshooter and get told 'windows did not detect a properly installed network adapter. If you have a network adapter, you will need to reinstall the driver' After that I go to my device manger to try to update (failed) and it states that not installed (Code 28) are 'Ethernet Controller' 'Network Controller' and 'PCI Simple Communications Controller' What do I do to fix this? I can only access internet via my iphone.