I am unable to send e-mails from my Outlook autocomplete list. When I add an address from there and hit send I get a message, "Could not complete the operation. One or more parameters are invalid." All the solutions online are to clear the autocomplete history, which kind of defeats the purpose. I have tried removing and re-adding the Outlook profile and running a full repair on Microsoft Office as well as trying to send from safe mode. After each attempt I get the same error. To make sure the autocomplete file wasn't the issue I copied it over to a different PC and used NK2Edit to successfully merge it, and I can send from the other machine fine.