Unable to install windows 7 home premium updates error code 643 (KB 954430, KB973688 & KB2538243) -

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I'm running Windows 7 Home Premium 64-bit on a Lenovo ThinkPad E530. This laptop is only brands new.

 

KB954430, KB973688 & KB2538243 - These three updates keep giving me problems. In Windows Update, under "view update history" these keep showing up as failed. I also get the error, "Code 643".

 

 

At the end of the installation it tells me three updates are failed to be installed and when I shut down to try to update, Windows always configures up to ~15%, then fails, and reverts changes, then prompts me to install updates the next time I turn my

computer on. Each time, I have to re-install every update that I had installed prior to shutting down.

I went through Trouble shooter - "Fix it" numerous times, Repaired Net framework profile and also followed few instructions I found from the net such as running "Reset Register Windows update Components" but nothing works so far.

 

I even tried manually installing KB954430 but it told me "An error occurred during the installation of assembly component. 7B30B69B-OE6C-B7EO-A06B-D6B9ABF34537  HR RESULT: 0 x 80070BC9" and the installation bar seems to stop at "Publishing

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