How to rebuild Mail Address Autocomplete in Outlook

As we all know, in outlook, when we are using an email id in the To Field for the second time, we see the address suggestions as we type few characters of their email address. This happens because of the Autocomplete feature in Outlook. However, when we migrate from one PC to another, by default auto-complete feature won’t work even when we set up Outlook with the PST file that was used in the earlier PC.

In this article, let us discuss some ways that can be used to get back the auto-complete feature for the already existing contact list.

Method 1: Delete Stream_Autocomplete_0 file

1 – Open file explorer 

2 – Go to the path given below


Just copy and paste the path in the address bar of File explorer

3 – Now, delete all files starting with Stream_Autocomplete_0

Screenshot 2022 12 22 133650 Min

4 – Close and Open Outlook

How to enable Mail address Autocomplete

Before proceeding, make sure, Autocomplete or Autofill feature is enabled in Outlook. To do so,

Step 1: Open MS Outlook

Step 2: Click on File Menu Option


File From Menu


Step 3:From the left bottom corner of the window, select Options




Step 4: From the Outlook Options window, choose Mail from the left-hand side.

Step 5: From the right-hand side, scroll down till you reach the Send messages section

Step 6: Make sure the option, Use Auto-Complete List to suggest names when typing in the To, Cc, and Bcc lines is checked


Outlook Mail Options

Method 2: The Traditional Way-entering addresses manually

Step 1: Click on the New Email

Step 2: In the To field, enter all the addresses manually from your address book.


Manually Enter Mail



Method 3: Quick Hack with “To” button

Step 1: Click on the New Email

Step 2: Click on the To  field


Click On The To Button


Step 3: You will see Select Names: Contacts window. From the Address Book dropdown, select the required address


Contact Address


Step 4: Drag and select all the addresses as shown below

Step 5: Click on the To button

Step 6: Now you can see, all the addresses being loaded to the To field

Step 7: Finally, click on OK


Mail Address List Min


Step 8: Discard the email.

That’s All

We hope found this article helpful. Thank you for Reading.

Kindly comment and let us know if this worked for you.