How to Empty an Outlook Cache

By Andrew Meer

By default, Outlook 2013 saves your contact addresses as part of its Auto-Complete feature, allowing you to instantly complete contact entries while sending out email messages. It can also, however, interfere with your workflow due to the constant drop-down menus that show up listing Auto-Complete suggestions. To prevent this issue from happening, you can opt to delete your Auto-Complete cache from your computer, accessible via Outlook 2013’s Options configuration panel.

Step 1

Press “Alt-F” to open the File navigation pane, then click the “Options” side-tab.

Step 2

Click the “Mail” side-tab on the Outlook Options pop-up window.

Step 3

Scroll down to the Send Messages section, then click the button labeled “Empty Auto-Complete List.”

Step 4

Click “Yes” on the confirmation pop-up box to empty your Outlook Auto-Complete cache.

Tips & Warnings

  • You also have the option to delete single Auto-Complete entries from the Outlook 2013 cache. Start composing an email, then start typing the contact address that you want to delete into the “To” menu. On the Auto-Complete drop-down list that shows up, click the “X” button next to the address to remove it.
  • Outlook 2013 also features a Forms cache that you may have to clear if you get persistent errors when using custom forms. To do so, click the “Advanced” side-tab on the Outlook Options pop-up window, scroll down to the Developers section and then click the button labeled “Custom Forms.” On the pop-up box that shows up, click “Manage Forms.” Click “Clear Cache” to empty the Outlook Forms Cache, then click “Close” to exit.