: Run the official Adobe Acrobat Cleaner Tool to remove remnants of previous Adobe installations, restart the PC, and try again.
Beyond security, the update also included several important bug fixes, including: adberdr11010-en-us.exe
Adobe Reader XI brought several enhancements that defined the PDF viewing experience for years: : Run the official Adobe Acrobat Cleaner Tool
: Since version 11.0.10 pre-dates Windows 10 and Windows 11, right-click the .exe file, go to Properties -> Compatibility , and check Run this program in compatibility mode for Windows 7 . restart the PC