Access to PDF files on email attachments

Try checking the file association. Open the Control Panel, Click on Folder Options, Select the File Types tab, Scroll down to locate the PDF extension, Select the PDF extension, Look below in the Details for PDF extension and select Change, locate and select Adobe Acrobat or Adobe Reader, then make sure there is a check mark in the "Always use the selected program to open this kind of file", Click on OK and then close.

first try to open an empty pdf document you may get ok or cancel if you clcik on cancel for two or three times mean you can open and empty pdf document and then through that you can open the original document