When you attempt to open a web page from a link in an email message and get this error: "Operation was cancelled due to restrictions in effect on this computer", it’s not an Outlook error. It’s a problem with Internet Explorer.

Unless this is a work computer and your administrator has set restrictions, it’s a corrupt registry key used by Internet Explorer. The usual fix is to reset web settings – in Control panel, Internet options or IE’s Tools, Internet options, go to the Advanced tab and reset the web settings.

If IE is not your default browser, reset its web settings than make your preferred browser default after you verify the error was fixed.

See http://www.slipstick.com/problems/link_restrict.htm for other options if resetting the web settings don’t work.