Accept license agreement button not enabled - Further question

The accept button can be seen clearly but not responding when clicked.

Have tried 2 advance solutions :

Solution 2 :

    after typing "regsvr32 jscript.dll" and press Enter, 

       error 0x80004005 invoke DllRegister Server  fail

Solution 3 :

     in the folder

      HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Adobe\Adobe Acrobat\product_version

         cannot find  sub-folder   AdobeViewer   

          and can only find   sub-folders  

                                                   Installer

                                                   InstallPath

                                                   Language

      and hence cannot proceed further