Adobe Acrobat 8.0 in CCleaner Posted February 3, 2011 The point - IMO - is that when the user installs Adobe Reader only, two registry keys called ""HKCU\Software\Adobe\xxx\Acrobat Reader\...."" and ""HKCU\Software\Adobe\xxx\Adobe Acrobat"" are created. (The xxx is the version number e.g. 8.0, 9.0 or 10.0). And then that second registry key in combination with the abbreviated detection line makes CC v3.03 think that the Acrobat software has been installed as well. Solution: CC v3.03 and higher versions shouldn't contain/use that abbreviated detection line for detecting Acrobat. This also assumes that Adobe Reader 9.0 and higher versions do create that registry key ""HKCU\......\.....\....\....\AVgeneral"" as well.