Why Block Attachments?
One of the most common ways in which viruses are spread is through e-mail attachments. Users can unknowingly open an attachment that appears to be safe but, before you know it, your computer and possibly your network are infected with some type of virus.
Use the Group Policy Editor
1. Open the run command and type gpedit.msc This opens the Group Policy editor.
2. Navigate to the following folder: User Configuration/Administrative Templates/Windows Components/Internet Explorer.
3. With the Internet Explorer folder selected, you should see an option in the right pane called Configure Outlook Express.
4. Double click this option, select the Enabled option, and place a check beside Block attachments that could contain a virus.
Network is Safe
Now your users will be unable to open any attachments that could contain a virus.