What program are you talking about? The latest Acrobat is 10.1.2 for the MAC and Windows. As for Adobe, this is a user forum and not a way to Adobe. If you got some announcement for a version 11, then there is the outside chance it was bogus and you loaded a virus.
I have moved this thread to the Flash Player forums from the Acrobat forums. Hopefully you'll be able to get the answer here.
How to uninstall Flash Player: http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html
How to install an earlier version of Flash Player: http://helpx.adobe.com/flash-player/kb/archived-flash-player-versions.html
Note that Flash Player 10.x does not run on 64-bit browsers.
jack duwayne003 wrote:
My browser is Firefox & I formerly had a version of 10 that worked perfectly. THEN came your warning I needed to upgrade to the above-mentioned version, and like an IDIOT, I listened to your warning that I *NEEDED* to update my 64 bit version to the 11 version I mentioned above. ALL THAT DID was *BUY* me worse headaches than I could EVER EVER imagine, then I soon found out that trying to re-install the old ver 10 I HAD *COULD NOT BE DONE* because version 11 =LIES= to the browser "Don't update this version because I'M NEWER & MORE RELIABLE!!!" Then Adobe acts like THEY know it all, and include No Way to UN-INSTALL!!! really bright & I've learned TONS I wish I had a way to UN-DO!!
The update was released for your own protection. Please read this article before reverting to an older version which will put your system at risk: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-0768
If you have a problem installing the latest version, the we'll do our level best to help you. but please try to explain the problem in a lucid and concise manner.