Vista - vista update problems

Hi guys
New to this forum hope you can help.
I did an update yesterday on my vista ultimate 64 with sp1 and my of has gone haywire.
It now takes about 5 mins to load onto the desktop and no services load.
No dhcp no event logger, no internet no nothing. When I try to repair it says dhcp could not be started
Any idea guys?
Thanks in advance.

Had windows update me the following

Important
KB954154 - security updates x64 = Windows Media Player (not use it)
KB938464 - Security Update for Windows XP (might be the reason for the snafu as it is Vista and not XP in use)
KB955302 - vista 64 (http://support.microsoft.com/kb/955302)
KB890830 - malicious software removal

Recommended

KB905866 - junk mail
KB954366 - "
Known issues after you install the update

After you install this update, a CD or DVD device may not work correctly. If you select the device in Device Manager, and then you view the device properties, you may receive the following error message: The software for this device has been blocked from starting because it is known to have problems with Windows. Contact the hardware vendor for a new driver. (Code 48)"


KB940157 - windows search 4

plus optional for network card

just wasted several hours of my life, tried ubuntu CD to see if the net works from my machine, system restore not working etc, ended up getting the oldest system restore and it works thank god !

automatic updates disabled and set to notify me, but not to install

suggest u use system restore

I would have done but it was not set.
Thanks for the advice anyway.
Any other ideas?