IE 11 displays protected mode off for all IE zones when right click and look at page properties while enhanced protected mode is enabled. We have know about an issue with Adobe Acrobat since IE10. When browsing an adobe file on the trusted or intranet site enhance protected mode is disabled and thus the pdf opens using acrobat 32 bit plugin. In IE11 all 32 bit plugins show the same error we saw when opening pdf file from the internet zone. Basically, a black "x" top left of the page. I suspect that even though the page reports enhanced protected mode off it appears that all sites have enhanced protected mode enabled.