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I have installed Windows 7 in Windows 8 Asus Essentio Desktop. On boot up I can choose which OS I want. Only problem I can't install LAN Drivers that work Realtek PCIe GBE Family Controller. Downloaded drivers for windows 7 OS says driver not digitally signed. Does work Also USB XHCI Compliant Host Controller same problem. I understand that's only for Windows *. Can I solve this problem? If Not will this machine Install Windows 7 successfully?

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Have you tried installing anyway, you can install drivers that are not digitally signed. – AthomSfere Apr 27 '13 at 17:17

Install the drivers anyway, assuming they came from the realtek website. It should fix your problem. If it does not work it may be a bad installation, as windows 8 computers do not play well with windows 7 unless all of the hidden bios options are changed (which you were apparently able to figure out).

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Thanks it worked downloading from Realtek. Previously installed from – Wayne Apr 30 '13 at 0:46
Windows would not allow installation of drivers not digitally signed – Wayne Apr 30 '13 at 0:50

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