I've never seen a Realtek driver being updated by Windows Update.
The one thing to try before booting from the Vista DVD for some kind of repair or reinstall of the OS:
For the repair options from CD, see
Toshiba laptop running Vista Home Premium. A friend asked for help removing the Antivirus 2010 malware. So I ran both Malwarebytes and SuperAntispyware on his system and cleaned it up, rebooted and all seemed fine. We noticed that the Windows Update icon was alerting us to updates being available so we let that run. It loaded updates for the .Net Framework and RealTek network controller. Now the system will not boot up.
We tried normal boot, last good boot and Safe Mode with the same results. It gets to the screen with the green activity bar and just stays there forever. When trying Safe Mode, it just lists all the drivers like normal but just stays there. We have tried each of these several times.
Normally I might try to remove the latest updates but can't do that if I can't boot up in some manner. I would appreciate any assistance with this.