after repair install you get an error message 0x7d4caa9b

22 Jun

this is probably related to DHCP service not starting.  searched the internet and found the fix is renaming the computer and workgroup.

also get the message when running  ipconfig  comes back with error message unable to query host name

it appears the computer name becomes blank for some reason.

I did replace tcpip.sys, dhcpsvc.dll files to no avail.  when I rename the computer and restarted things started working.