Recently my LAN refused to work and I suspected it to be my on-board network card .inf files because of what I did: (I ran Dell Optiplex 330 vista network drivers instead for Windows XP one and it installed the .inf files to the registry). I tried troubleshooting by checking the error logs during boot-up as my system sometimes was hanging at start up but I couldn’t understand the error log created).
When I installed a PCI network card and disabled the onboard one via BIOS, the system worked perfectly! How can I remove these .inf files? :’(