Cannot restart to finish install new updates

Hello,

Couple of days ago, I accidentally pulled the computer plug from the wall outlet while the computer was on. The PC can start if I press the power button but it can not restart on its own after it installed new updates. Instead a gray colored a box appears that says : Startup repair is trying to fix the problem. It took about 10 min. to fix and to eventually did restart again. However, most of my windows updates failed to be installed. As you all know, after the updates are downloaded & installed, the computer needs to be restarted to Complete the installation process. So after the updates configures, the PC shuts down and attempts to restart but it could not and it goes though the Startup repair screen every time. Although after the Startup repair screen, it manages to restart BUT when I checked for the status of the updates (Vista security updates & Windows updates), it said these updates FAILED. I am panicking and I am ready to pull my hair out.

Please help!