System Software Update Will Not Install

Discussion in 'OS X Mountain Lion (10.8)' started by Howard54, Jun 2, 2013.

  1. macrumors member

    Oct 16, 2009
    I am running a Macbook Air with Mountain Lion. The App Center shows a Thunderbolt 1.2 software update for RAW 4.06 compatibility is available. The laptop downloads the update and then tries to restart, but instead of restarting it just shuts down and I have to restart it manually. When I do, the update is not installed and it still shows as available.

    I have repeated the process several times with the same result. Is this a common issue with this update? Is it my Macbook? Any ideas how to resolve? Other software downloads seem to work fine.
  2. macrumors P6


    Jan 23, 2005
    You have to be on AC power for this update to work.
  3. thread starter macrumors member

    Oct 16, 2009

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