

With the help of this method, you don’t have to go through the hassle of clearing auto-complete store manually. Now, type “ Outlook.exe /CleanAutoCompleteCache” in the field and hit “ Ok.”.Press “ Window + R” to start the “ Run” command.Method 2: This method includes the use of cmd command to start Outlook, and then clear the Auto-complete store. This is the easiest way to clear the Auto-complete store. A notification window will appear on the screen to confirm your action.Now, select the “ Mail” tab, go to “ Send Messages” area and click “ Empty Auto-Complete list.”.


One of the main reasons behind this error could be a corrupted address in the Auto-Complete store. If you’ve ever faced “ AutoComplete doesn’t save email addresses” error in Outlook, then you might know how annoying it is to get rid of it. “Whenever I restart Outlook, the AutoComplete cache is completely empty again.” – John Mavic reported a complaint on Microsoft forums.
