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#11
Boot the Win7 DVD System Recovery Options
and run Startup Repair repeatedly. It should automate System Restore, but if not click through to the Recovery Tools list to run it manually to roll back to before you started Updating.
When Win7 starts, install the Updates in small groups starting with the drivers given in both Important and Optional Updates.
Each updates group will set a Restore point so that you can roll back if the group causes system to become unbootable.
If so install each of the updates in that group individually until you isolate the problem Update and restore before it, then post it up in our Updates forum or open a Support case via email on Windows Update website.