If the updates were actually installed, it's possible that they may have caused the current problem. Can you get into Safe Mode? If yes, I'd suggest uninstalling those updates by using a Restore Point. Hopefully that will return your machine to a good working condition. If no restore point is available I'd manually uninstall the updates and see if that fixes things. Safe Mode System Restore Windows Update - Uninstall an Update
If you want to reinstall the updates I suggest just a few at a time. Reboot after installing each group to make sure the computer is working. Then install the next group, and so on. If you find that your computer stops working you'll know which group to uninstall. Then install one at a time rebooting after each one. It's a slower process but usually results in a cleaner install of updates.
If it turns out not to be an update problem, one of the Forum experts prepared this troubleshooting guide: Troubleshooting Windows 7 Failure to Boot