Flash Installation Failing

Question

Attempted to update the flash on my 15" Retina Macbook Pro running OS X 10.10 today, only to get the error "installation failed" which provides me a link to a support page. After extensive research on Adobe forums, I followed several pieces of advice for a fix with no avail. For example:
I uninstalled the flash version I currently had, restarted my computer and attempted a new clean install as suggested by Adobe. Did not work.
I've attempted to run an install using that backdoor method of "show package contents" and installing from there. Same error occurs.
I've downloaded the .dmg file a few times incase I had something wrong with the download. I've restarted computer multiple times. Still nothing. Now I don't even have the previous version of flash installed on the computer, because the previous advice was to uninstall it altogether.
Any new suggestions out there?

Answer 1

Hi radiatedesign
Thank you for providing the screenshot it is as it does confirm you and OP sarahrannals are having the same error.
To address your other comment, by posting 'same thing' and not providing the previously requested information slows down our ability to assist you, as your issue may or may not be the same as the OP.  Many people post "same thing" but it usually turns out that their issue is not be the same thing as the OP  For example, in this thread, melinda_o said she had the same problem as OP sarahrannals, but the offline installer worked for melinda_0, and is not workging for sarahrannals, and probably won't work for you either, therefore, melinda_o did not have the "same issue" as sarahrannals.  This is the reason for asking for the information, to verify if it was indeed the same issue.
sarahrannals and radiatedesign
Unfortunately, the FlashPlayerInstallManager.log file didn't provide information on the failure.  This usually indicates a permissions issue in the filesystem.  Repairing the filesystem and filesystem permissions may resolve this.  Please see the section on First Aid in this Apple tech note, Resolve startup issues and perform disk maintenance with Disk Utility and fsck - Apple Support.  Run both Verify and Repair Filesystem and Verify and Repair Disk Permissions.  Sometimes the verify step will return clean, but the repair step will fix some things.
After completing the above.  Delete all Flash Player installers you may have downloaded and download a new installer again from https://get.adobe.com/flashplayer.  I recommend clearing the browsers cache first to make sure a previously cached installer is not downloaded again.
Maria