But it then waits for you to continue, including choosing the target for the installation.

From the resulting dialog, the App Store app appears to be willing and able to do this.

Heres the text of that dialog: Would you like to continue OS X v10.10.3 is already installed on this computer.

10.3 Download The Full

Use the Updates page to install the 10.10 update or if you would like to download the full OS X installer click Continue.

When I click Continue, a spinning gear appears in the upper left area of the App Store UI.

10.3 Download Button To

This AM, the App Store had changed the Download button to Downloaded but I could not find the installer in the Applications folder or anywhere else for that matter.

I even dug through all of the Time Machine BUs for last night no installer.

Am I missing an important step or is this a malfunction on Apples end.

I suspect the issue is largely one of timing.

I ran that update within a couple of hours of its release and it saturated a 50Mbsec connection so it only took a few minutes to download.

The next morning, there were problems like yours and they appear to be continuing.

Normally, the installer downloads and begins to run once the download is complete.

Thats the opportunity to quit instead of proceeding and then making a copy to archive.

I even performed that search in Time Machine on the supposition that it may have auto-installed and deleted itself.

According to the App Store app, it should not have auto-installed.

I also used Time Machine to compare disk space and saw no change.

I take the spinning gear as being an icon of getting ready that should have been replaced by a progress bar.

The fact that the progress bar never appeared makes me think that there is something amiss on Apples end.

Im unsure that my recollection of seeing Downloaded: the next AM was correct.

Mac Os X 10.3 Download