The warning messages are designed to act as an extra security mitigation, informing users of the risks that they face when clicking a link in the Outlook email client for example. "In 2007 Office and in Office 2010, when you click a hyperlink or an object that links to an executable file, you receive the following warning message," Microsoft warned via KB925757:
Hyperlinks can be harmful to your computer and data. To protect your computer, click only those hyperlinks from trusted sources. Do you want to continue?
This behavior occurs regardless of your security level settings. Note To locate your security level settings, point to Macro on the Tools menu, and then click Security.
Additionally, when you open either TIFF images or Microsoft Document Imaging (MDI) files, you receive the following warning message:
Some files can contain viruses or otherwise be harmful to your computer. It is important to be certain that this file is from a trustworthy source. Would you like to open this file?
To have enable hyperlink warnings for 2007 Office programs and for Office 2010 programs for you, click the Fix it. In the File Download dialog box, click Run, and then follow the steps in the Fix it Wizard.
Or follow the steps below for manual fix:
To enable or disable the hyperlink warnings in 2007 Office programs and in Office 2010 programs when an http:// address, notes:// or an ftp:// address is used, you must create a new registry subkey. To do this, follow these steps:
- Click Start, and then click Run.
- In the Open dialog box, type regedit, and then click OK.Note You only have to modify one of these registry subkeys. You do not have to modify both of them.
Note If the Security subkey already exists, skip to Step 6 after selecting the Security subkey.
- Click the registry subkey, point to New on the Edit menu, and then click Key.
- In Registry Editor, locate one of the following registry subkeys for 2007 Office:
- Or, in Registry Editor, locate one of the following registry subkeys for Office 2010:
- Type Security, and then press ENTER to name the key.
- On the Edit menu, point to New, and then click DWORD Value.
- Type DisableHyperlinkWarning, and then press ENTER to name the entry.
- In the right pane, right-click DisableHyperlinkWarning, and then click Modify.
- In the Edit DWORD Value dialog box, click Decimal, and then type 1 under Value data.
Note A value of 0 enables the hyperlink warning message. A value of 1 disables the hyperlink warning message.
- Click OK.
- Exit Registry Editor.