I am running Windows XP Home SP3 on a Lenovo SL500.
I had the same problem as http://www.geekstogo...tically-solved/where several windows services (sound, dhcp, computer browser, wireless zero to name a few) stopped on their own. I noticed this problem because the sound icon disappeared and wireless showed as "acquiring network address" one fine day. When I go into services.msc I am able to turn everything back on EXCEPT dhcp (error 1067). However windows audio stays on for a few minutes and then turns off. I also noticed that attempting to start dhcp causes all the restarted services to also immediately turn off. Also, when this happens, the "Dependencies" tab for all services starts to show "no dependencies" even though a moment ago it was displaying it correctly for everything (including dhcp).
I have tried the following:
1) going to the previous working version - no luck
2) I have no internet now because dhcp won't start, so I tried hard coding the ip and dns information but I still can't connect.
3) I ran winsockxpfix.exe, sfc.exe /scannow - nothing
4) I did a registry clean with Free Window Registry repair - no luck
5) I did a repair install of Windows again and still nothing.
6) I am inclined to think there is some sort of virus, so I ran Malwarebytes (found nothing), HijackThis (found some pretty harmless stuff that didn't make it better or worse), TDSSKiller (found nothing), Asquared antivirus (found stuff that didn't make it better or worse). I also ran the Tweaking.com tool suggested in this thread and didn't fix the problem.
Also when I try to use ipconfig, it gives an error saying "an internal error has occurred. the system cannot find the file specified". I have no idea what file this is.
Does anyone have any clue what's wrong and how I can fix this? I am sure there is some rootkit virus but nothing seems to find it (I also wanted to point out that I've been using AVG for years and the antivirus has always been on). I don't want to have to format and do a fresh install if possible. I am desperate and any help would be much appreciated!