Need original download files so I can reinstall and upgrade

Need original files for 'Matsushita BD- CMD UJ-120B' or 'Optiarc BD ROM BC-5500 A. They are both shown on Sony Vaio site with upgrades, but the original files are gone or corrupt in registry. I have VGN-AR825E model which came with Vista But I upgraded to Win 7, and this has been the main problem. It doesn;t even show a DVD drive on 'My Computer'
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More about need original download files reinstall upgrade
  1. This might be a long shot, but have you thought doing a system restore and seeing if the files will restore as well? It's the only thing I can think of short of doing a factory reset of your machine.

    -- Ryan
    Windows Outreach Team
  2. No good, this all happened when I took laptop from vista ultimate to win 7. I probably screwed them up or just the upgrade.

    Thanks CB
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