Uncheck "Show ReadMe file" unless you need patch notes.
The story of the Adobe Reader XI 11.0.23 offline installer is one of a "final stand" for a software version many still consider superior to its modern, cloud-based successors. Released on November 14, 2017 adobe reader xi 11.0 23 offline installer
Because Adobe Reader XI is unsupported, using it on a modern, internet-connected PC poses a significant security risk . Hackers actively exploit unpatched vulnerabilities in old PDF readers. If possible, use a modern alternative: Uncheck "Show ReadMe file" unless you need patch notes
Adobe Reader XI (version 11) was released in 2012 as a major overhaul of Adobe’s PDF viewing software. It introduced features like protected mode viewing, cloud integration (Adobe Cloud), and enhanced commenting tools. Version represents the last cumulative update for the XI generation, released in July 2017. Version represents the last cumulative update for the
Adobe no longer provides technical support, security patches, or bug fixes for this version.