Error 1326 when changing domain account password in Windows
Windows Server 2012 R2 Data Center Windows Server 2012 R2 Standard Plus…
This article describes an issue that occurs after you install security update 3126041 on Windows 8.1, Windows RT 8.1, Windows Server 2012 R2, Windows Server 2012, Windows 7 Service Pack 1 (SP1), or Windows Server 2008 R2 SP1. You can fix this problem by using the update package that is described in this article.
When changing the domain account password using a 32-bit application on a 64-bit operating system calling the NetUserChangePassword API, the password change returns an error message similar to the following:
Despite the error, the password in Active Directory Domain Services is changed. However, your login and cached credentials are not updated. This situation is similar to the following:
Sign in on two computers.
Change the password on the first computer.
They remain connected to the second computer using the old password.
In this situation, you may experience any of the following issues:
If you are disconnected from the network, you can log in using the old password.
Access to resources is denied.
It will ask you to enter your password when you access the resources.
If an account lockout policy is active in the domain, the user account is locked out.
This issue persists until you log on to the computer where the password change occurred, and then log on again using the new password.
Also, if you apply the update that is documented in KB 3139921 , you no longer receive the error message, but these symptoms persist.
The fix for this issue was first included in security update 3153171 for MS16-060 and MS16-061 for Windows 7 with SP1, Windows Server 2008 R2 SP1, and Windows Server 2012.
This fix is also included in the update rollup packages for May 2016. Use one of the following cumulative packages, depending on your operating system:
May 2016 Update Rollup for Windows RT 8.1, Windows 8.1 and Windows Server 2012 R2 (KB3156418)
May 2016 update rollup for Windows Server 2012 (KB3156416)
May 2016 Update Rollup for Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB3156417)
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the “Applies to” section.