Outlook 2010 PDF Preview Issue

·         Firstly, please kindly check if the PDF Preview Handler function has been disabled.

1. Launch Outlook.exe, go to File > Option > Trust Center > Trust Center settings > Attachment Handling
1. Uncheck the box "Turn off Attachment Preview"
2. Click option "attachment and Document Previewers" and check the box "PDF Preview Handler"

Thanks.

Prashob