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You are locked out of the domain after you start Outlook 2007

Consider the following scenario in a domain environment:
  • A domain account and a Microsoft Office 365 account have the same user principal name (UPN).
  • The passwords for the domain account and for the Office 365 account differ from each other.
  • Active Directory Federation Services (AD FS) is not used in the domain.
  • The account lockout value is something other than the default value.
  • You log on to the domain from a computer that's running Windows 7, and then you start Office Outlook 2007.
  • You make some WinHTTP requests to Office 365. For example, you open a shared calendar.
  • There are no on-premises Exchange resources
In this scenario, you are locked out of the domain.
To resolve this issue, apply the following hotfix package:
2687262 Description of the Outlook 2007 hotfix package (Outlook-x-none.msp): June 26, 2012

Registry key information

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
After you install the hotfix package, to have us enable the hotfix for you, go to the "Fix it for me" section. If you prefer to enable the hotfix yourself, go to the "Let me fix it myself" section.

Fix it for me

To enable the hotfix automatically, click the Fix it button or link. Then click Run in the File Download dialog box, and follow the steps in the Fix it wizard.

  • Install the hotfix that's described in Microsoft Knowledge Base (KB) article 2687262 before you run this Fix it solution.
  • This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.
  • If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD, and then run it on the computer that has the problem.

Then, go to the "Did this fix the problem?" section.

Let me fix it myself

After you install the hotfix package, follow these steps to enable the hotfix:
  1. Click Start, click Run, type regedit in the Open box, and then click OK.
  2. Locate and then select the following registry subkey:

  3. On the Edit menu, point to New, and then click Key.
  4. Type Security, and then press ENTER.
  5. Select the Security key, on the Edit menu, point to New, and then click DWORD(32-bit) Value.
  6. Type DisableWebAuthenticationType, and then press Enter.
  7. In the Details pane, right-click DisableWebAuthenticationType, and then click Modify.
  8. In the Value data box, type 10, and then click OK.

    This is a hexadecimal value. After you click OK, it is displayed as 0x00000010 (16).
  9. Exit Registry Editor.

Did this fix the problem?

  • Check whether the problem is fixed. If the problem is fixed, you are finished with this section. If the problem is not fixed, you can contact support.
  • We would appreciate your feedback. To provide feedback or to report any issues with this solution, please leave a comment on the "Fix it for me" blog or send us an email.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More information
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

2598365 You are locked out of the domain after you start Outlook 2010
For scenarios with on-premises or hybrid Exchange deployments:

2760400 You are locked out of the domain after you start Outlook 2010 in a hybrid Exchange environment

2760398 You are locked out of the domain after you start Outlook 2007 in a hybrid Exchange environment
fixit fix it fixme

Article ID: 2598366 - Last Review: 02/07/2015 00:36:00 - Revision: 5.0

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