Adobe Reader not foundwin

Windows

A) Please install the Adobe Reader from below. 
Adobe Readerのダウンロード


B) Please try reset IE with the following steps.
  1. Open menu of IE. "Tools" > "Internet Options"
  2. Open "Advanced" tab then push "Reset..." button
  3. Restart IE.


C) Try fix Adobe Reader with the following steps. 
  [ Windows 10 ] 
  1. Open "Settings" > "System" > "Apps & Features" > "Adobe Reader" > "Change". 
  2. Select "Repair installation errors in program" on the Adobe Reader installer then finish it.

  [ Windows Vista, 7, 8.1 ] 
  1. Open "Control Panel" > "Programs and Features" > "Adobe Reader" > "Change" 
  2. Select "Repair installation errors in program" on the Adobe Reader installer then finish it.

  [ Windows XP ]
  1. Open "Control Panel" > "Add or Remove Programs" > "Adobe Reader" > "Change"
  2. Select "Repair installation errors in program" on the Adobe Reader installer then finish it.


E) Please try re-install Adobe Reader.