My network adapter does not work on my client machine. It happened after doing a Windows update using WSUS with Windows SBS 2003. The problem is similar to your issue ID26366762. The AFD appears to be corrupted in the device manager and will not Start. My ndis.sys file is missing. I tried copying it from another machine with identical OS (I checked using winver) which caused the blue screen making the OS unbootable. So I booted into Safe Mode w/command prompt and in there I deleted the ndis.sys and now I can at least boot up normally again. But still no networking.
I tried uninstalling the network adapters. I can delete the Broadcom NetXtreme, but I have more. I have a Hamachi VPN. That one deletes. There are four WAN Miniports with these specifics... (IP), (L2TP), (PPPOE), (PPTP). Also there is a Direct Parallel. Those latter 5 refuse to uninstall saying they are needed for booting.
I tried running CHKDSK /F and installing the device driver from Dell (the client mfg) for the Broadcom.
Right now I'm running SFC /scannow. I don't know yet what the result will be. So that's the issue.