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The CHECK_POLICY and CHECK_EXPIRATION options cannot be turned OFF when MUST_CHANGE is ON. (Microsoft SQL Server, Error: 15128)
Problem: Recently one of my user reported the issue that, He is getting password change message while login to SQL Server. But he does not want to change the password as he has already configured at the many places. While turning off the Password Expiration message, I got the below error.
The CHECK_POLICY and CHECK_EXPIRATION options cannot be turned OFF when MUST_CHANGE is ON. (Microsoft SQL Server, Error: 15128)
Solution:
To fix the issue you MUST have to change the password first without changing in password policy options. The good thing it that you can change the password to be the same as the existing one. -:)
But still you have to change the password -:) what a logic!!! You can do it from SSMS GUI as well, but I always prefer to use the scripts as it is giving me flexibility of customization.
That was the another reason I am in the support of open source software you have flexibility to add your ideas. Let’s go to fix the issue.
In the below step I am giving the same password, to fix “User Must Change Password” flag.
USE Master
GO
ALTER LOGIN [Login Name] WITH PASSWORD = ‘Same Password‘
GO
Now let’s turn off the passowrd policy.
ALTER LOGIN [Login Name] WITH
CHECK_POLICY = OFF,
CHECK_EXPIRATION = OFF;
原文：http://www.cnblogs.com/byxxw/p/4913243.html