Autocomplete not working correctly in Outlook

This article suggests solutions if you find that Autocomplete is not working in Outlook. Autocomplete is an important feature in Outlook which suggests email addresses as soon as you type the initials. However, many users have reportedly encountered a problem where autocomplete doesn’t work properly in Outlook. This may occur due to a corrupted Autocomplete cache or an add-in or something else. If you are also facing the same issue, we got you covered. Here, we are going to mention various methods using which you should be able to fix the issue.

Autocomplete is not working in Outlook

These are the methods to try if Autocomplete is not working correctly in Outlook:

  1. Ensure that the Autocomplete setting is enabled.
  2. Rename the RoamCache folder.
  3. Disable Outlook Change Notifier add-in installed by iTunes.
  4. Run Outlook in Safe Mode.
  5. Create a new profile.

Let’s discuss these solutions in elaboration!

1] Ensure that the Autocomplete setting is enabled

The first thing you need to try to fix this issue is to ensure that the Autocomplete option is turned on. For that, you can follow below steps:

  1. Start Outlook application and go to File > Options.
  2. In the Outlook Options wizard, navigate to the Mail tab.
  3. Now, scroll down to the Send Messages section and make sure that the checkbox called Use AutoComplete List to suggest names when typing in the To, Cc, and Bcc lines is enabled. If not, enable it.
  4. Click on the OK button.

Now, if the autocomplete option is already enabled and still not working, you should try clearing out the Autocomplete list using the below steps:

Go to the autocomplete option using the above-mentioned steps and then select the Empty AutoComplete List button present beside it. Next, confirm the autocomplete list clearing process by clicking the Yes button.

After that, try sending some test emails to the same recipient and see if Autocomplete starts working or not. If not, consider using another method from this list to troubleshoot the problem.

2] Rename the RoamCache folder

Another method that you can try is renaming the RoamCache folder. It will reset autocomplete, so you will lose all saved addresses in autocomplete list.

Before using this method, check if you are using a Microsoft Exchange Server account or some other one. For that, open Outlook and go to the File > Info and click on the Accounts Settings option. In the new dialog window, check if the Type is Microsoft Exchange or something else.

If the type is Microsoft Exchange, try the below steps:

Step 1: Go to File > Info > Accounts Settings and select the Microsoft Exchange Server account. Then, click on the Change button.

Step 2: In the next prompt, click on the More Settings button and then disable the Use Cached Exchange Mode checkbox. After that, press the OK button and exit the Outlook application.

Step 3: Now, press Windows + R hotkey to open the Run dialog box and enter the below address in it:


Step 4: In the opened directory, you will see a folder named RoamCache. Rename this folder as old_RoamCache.

Step 5: Restart the Outlook application.

Step 6: Now, you have to enable the Use Cached Exchange Mode checkbox that you previously disabled. Refer to the above Step (1) and Step (2) to do that.

Step 7: Finally, again restart Outlook and see if the autocomplete starts working again.

Note: In the case of a home email account, you can skip Step (1), Step (2), Step (6), and Step (7) and follow other steps to rename the RoamCache folder and reset Autocomplete.

3] Disable Outlook Change Notifier add-in installed by iTunes

The autocomplete not working problem may also be triggered due to the Outlook Change Notifier add-in installed by iTunes. Try disabling it using the below steps and then check if the problem still persists:

  1. Start Outlook and go to File > Options and navigate to the Add-Ins tab.
  2. Press the Go button present beside the Manage COM add-ins option.
  3. In the Add-ins dialog window, locate the Outlook Change Notifier add-in and then uncheck it.
  4. Next, click the OK button to confirm and then return to the main window.

4] Run Outlook in Safe Mode

If any other add-in is causing this problem, you should check Outlook in safe mode and see if the autocomplete feature works or not. Simply press Windows + R hotkey to open Run, write outlook.exe/safe in it, and press the Enter button. It will start the Outlook application in safe mode without any add-in.

If the autocomplete works in safe mode, there might be some issues with add-ins installed. Disable all of them using the steps mentioned in Method (3). And then, restart Outlook and see if the issue is gone.

5] Create a new profile

When no other solution works, you should try creating a new Outlook profile and see if the Autocomplete feature starts working again. This fixes up issues in Outlook generally also.

That’s it! Hope you are able to resolve Autocomplete not working in Outlook issue using the above methods.

Now read: Body of Emails or Text is missing in Outlook.

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