Have you ever come across a situation where you were not able to open or download an email attachment while using Microsoft Outlook 2010? Microsoft Outlook 2010 has a set of security features that are intended to provide a good level of security while handling your various email accounts. Since it connects to the internet to access your email messages, there is a high risk of infection of your computer by malicious programs and harmful malware that creep in through the email, and hence create many Outlook problems. So if you set up protection for your computer, it blocks certain formats of file attachments that it thinks potentially unsafe to open. This applies to all email accounts, no matter whether it’s a trusted email address, and is on your Outlook contacts list. But if you think that it is safe to open that attachment, you may reconfigure Outlook to allow such attachments, which are included in the list of blocked formats.
- Open the “Start” menu and type “regedit” into the Search box. Press the “Enter” key.
- When you get the User Account Control dialog box, click “Yes”.
- In the Registry Editor window, locate "HKEY_CURRENT_USER" folder and right-click to select the “Expand” option.
- Under this folder, you need to expand the following folders - "Software", "Microsoft", "Office", "14.0" and "Outlook".
- In “Outlook” folder, click on “Security” folder.
- Choose an empty space on the right pane and right-click to select “New” from the pop up menu. Further choose “String Value”.
- Enter the name for the new string as “Level1Remove" and press the “Enter” key.
- After typing the name, double-click on "Level1Remove" icon.
- It’s now time to type file extension of the blocked file attachment. Type the extension into the "Value data" box. Suppose the extension is “.doc”; then type this in, and click “OK”. If there are more than one type of file attachment, you can type those extensions separated with a semi-colon. For example, ".doc;.txt;.dat".
- Now close the windows which are open, and reboot your computer.
- Launch your Outlook 2010 and try to download the email attachment. You should be able to download and access the attachment.
You can easily fix many Outlook problems by following the easy troubleshooting steps that you can find in Outlook Help menu. Go through it and try fixing your Outlook issues on your own. If required, seek assistance from our Support Center.