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:
Description of the Outlook 2007 hotfix package (Outlook-x-none.msp): June 26, 2012
Registry key informationImportant
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:
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
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
Fix this problem
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Microsoft Fix it 50919
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Then, go to the "Did this fix the problem?
Let me fix it myself
After you install the hotfix package, follow these
steps to enable the hotfix:
- Click Start, click Run, type regedit in the Open box, and then click OK.
Locate and then select the following registry subkey:
- On the Edit menu, point to New, and then click Key.
- Type Security, and then press ENTER.
- Select the Security key, on the Edit menu, point to New, and then click DWORD(32-bit) Value.
- Type DisableWebAuthenticationType, and then press Enter.
- In the Details pane, right-click DisableWebAuthenticationType, and then click Modify.
- In the Value data box, type 10, and then click OK.
Note This is a hexadecimal value. After you click OK, it is displayed as 0x00000010 (16).
- 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
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section.
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
You are locked out of the domain after you start Outlook 2010
For scenarios with on-premises or hybrid Exchange deployments:
You are locked out of the domain after you start Outlook 2010 in a hybrid Exchange environment2760398
You are locked out of the domain after you start Outlook 2007 in a hybrid Exchange environment
Article ID: 2598366 - Last Review: February 7, 2015 - Revision: 5.0
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