After upgrading from Windows 7 Home Premium to Windows 7 Enterprise (x64) Service Pack 1 (build 7601), I cannot find working drivers for my ethernet controller. The desktop is a HP Pavillion, Model No. p6710f. I located the drivers on HP's website, but Windows 7 Enterprise is not listed as compatible. Compatibility list: Microsoft Windows 7 Home Basic (64-bit), Microsoft Windows 7 Home Premium (64-bit), Microsoft Windows 7 Professional (64-bit), Microsoft Windows 7 Ultimate (64-bit), Microsoft Windows 7 (64-bit) The original driver (according to HP's site) is a Realtek PCIe Family networking controller, Version:7.26.902.2010 Rev. A. I tried contacting HP, but apparently I voided their warranty once I upgraded to Windows 7 Enterprise. I do not have a support plan with Microsoft because the operating system was purchase through TechSoup (nonprofit). I greatly appreciate your help; let me know if you need more information.

On Fri, 15 Jul 2011 21:36:53 +0000, microsoft_questions wrote: After upgrading from Windows 7 Home Premium to Windows 7 Enterprise (x64) Service Pack 1 (build 7601), I cannot find working drivers for my ethernet controller. The desktop is a HP Pavillion, Model No. p6710f. I located the drivers on HP's website <http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=pv-89905-1&cc=us&dlc=en&lc=en&os=4063&product=5049513&sw_lang=>, but Windows 7 Enterprise is not listed as compatible. Compatibility list: Microsoft Windows 7 Home Basic (64-bit), Microsoft Windows 7 Home Premium (64-bit), Microsoft Windows 7 Professional (64-bit),  Microsoft Windows 7 Ultimate (64-bit), Microsoft Windows 7 (64-bit) Windows 7 Ultimate and Enterprise are essentially the same with regard to their software. Only the license is different. So if it's compatible with Ultimate, it's also compatible with Enterprise. Ken Blake, Microsoft MVP

Your LAN controller is based on the Realtek RTL8105E chip. The following Realtek driver should work. http://www.realtek.com/downloads/downloadsView.aspx?Langid=1&PNid=7&PFid=7&Level=5&Conn=4&DownTypeID=3&GetDown=false#RTL8100E/RTL8101E/RTL8102E-GR/RTL8103E%28L%29%3Cbr%3ERTL8102E%28L%29/RTL8101E/RTL8103T%3Cbr%3ERTL8401/RTL8401P

I had the same kind of "problem" when I uninstalled Windows Vista Business from my HP notebook and installed Windows Vista Ultimate: according to the information provided by HP, they support only the operating systems listed in the web page related to your PC. Anyway, there's no substantial difference between a Windows 7 edition and another, except for the license and for some software bundled in the operating system installation: you can use the driver that you've used until now. Remember to always use drivers provided by HP and to not install drivers downloaded from other sources (in this case, the Realtek web site). I also suggest you to install two useful HP tools to help you keep your computer up to date: HP SoftPaq Download Manager (http://h20331.www2.hp.com/Hpsub/cache/509658-0-0-225-121.html) and HP Support Assistant (http://h71036.www7.hp.com/hho/us/en/pclc/articles/hp-support-assistant.html?jumpid=reg_R1002_USEN). Bye.Luigi Bruno - Microsoft Community Contributor 2011 Award