Adobe has released the quarterly security update for Adobe Reader and Acrobat XI for Windows and Macintosh. The update addresses critical vulnerabilities and should be installed as soon as possible. Adobe Reader XI (11.0.14) for Windows is available here: https://www.adobe.com/support/downloads/detail.jsp?ftpID=6011.
Note: UNcheck any pre-checked additional options presented with the update. They are not part of the software update and are completely optional.
Security Bulletin (https://helpx.adobe.com/security/products/reader/apsb16-02.html)
Avoid third party offerings from Adobe at all times - now more than ever folks are monetizing sites with this sort of third party hijack software.
https://twitter.com/randyknobloch/status/686951577278672896