How to view all IE Trusted Sites when security settings are managed?

In the registry, perform a search for a URL that is known to be trusted. This should get you to the relevant key where you can see all of the others.

On my Windows 7 installation, the path appears to be HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMapKey, which is slightly different from this answer.

The key should contain several string values with a name indicating the URL and numeric data indicating the zone, one of the following by default.

• 0 = My Computer
• 1 = Local Intranet Zone
• 2 = Trusted sites Zone
• 3 = Internet Zone
• 4 = Restricted Sites Zone

Depends upon your firm whether the list is under HKLM or HKCU. Here's a quick Powershell command to get the list

$(get-item "HKCU:\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMapKey").property

$(get-item "HKLM:\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMapKey").property

Try this:

• Start -> type gpedit.msc -> hit Enter
• navigate to Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page
• in the right-hand panel, double-click on the Site to Zone Assignment List option, then click Show...
• trusted sites are the ones with 2 in the Value column (1 = Intranet, 3 = Internet, 4 = Restricted)

If that doesn't work (that option is set to "Not Configured" or the list is empty), try the same, except instead of Computer Configuration, start with User Configuration.