!!link!! Download Install Adobe Acrobat Xi Standard -

Adobe no longer provides technical support, security patches, or bug fixes.

Open the .exe file (typically AcrobatStd_11_Web_WWMUI.exe for the standard version). download install adobe acrobat xi standard

After rebooting, you are not done yet. You need to activate the software and apply the final updates (dated 2017). Adobe no longer provides technical support