I occasionaly see the subject pop-ups and they provide a bulletized list of things included in the "update". They never specify the version of the update though, and that is of interest. They provide a link captioned "See details" but standard computer security wisdom is to never click on a link in an unexpected pop-up. Presumeably, if the pop-up is really from Adobe, the link would take one to a page which would reveal the version of the "Update." Clicking on a link in an unexpected pop-up, however, is not a safe practice,
Clicking on a link in an unexpected pop-up, however, is not a safe practice,
Then use this link to download installation and uninstallation files:
Uninstall the old version before intalling the new version.
Or you can go to Adobe Labs and download Flash Player 11.2 beta and use its automatic download option.