I've had multiple attempts to update my adobe flash player, as requested, since updating my MacBook Pro to Yosemite MacOS 10.10
After multiple attempts to install after Safari browser is quit, I tried uninstalling all flash players, and attempting to download and install to the same error during installation at 76%: Unable to proceed with the installation. I went to my privacy/security settings and made sure that downloads are allowed by the app store and third parties. What else can I do? Thanks for your help in advance!
I'd try doing an uninstall and reinstall first:
If that doesn't work, try a clean install instead:
If you're still stuck, please give us the contents of:
I, like many others, was having an installation problem on my Mac running OS 10.7.5. Even after downloading and uninstalling my previous version and confirming that it did uninstall and trying http://fpdownload.macromedia.com/pub/flashplayer/latest/help/install_flash_player_osx.dmg it would hang up at the 75% point as for jasperjoey above.
On the hunch that it was Safari's download causing the problem, I downloaded above with Chrome instead and then installation went fine. So this may be a workaround for some people.