Windows Account Continuously Locking Out

Reason 1:

“Credential Manager” is one of the reasons for Account Lockout issue, because it store user old password and it never change it until you click check mark on “Remember Password”.

“Credential Manager” allow you to store credentials, such as user names and passwords that you use to log on to websites or other computers on a network. By storing your credentials, Windows can automatically log you on to websites or other computers. Credentials are saved in special folders on your computer called vaults. 

Below are the steps to Add/Remove/Modify “Credential Manager” details:

Click Start  select Control Panel

Click User Account icon in Control Panel

Goto Left Pane and select “Manage your credentials”

After clicking “Manage your Credentials” you will see below window:

Now clear the credentials from the list which is using your windows login credentials and impacting for account lockout.

Reason 2:

Account also gets impacted if User logging on to multiple computer or network device with his credentials:

A user may log onto multiple computers at one time. Programs that are running on those computers may access network resources with the user credentials of that user who is currently logged on. If the user changes their password on one of the computers, programs that are running on the other computers may continue to use the original password. Because those programs authenticate when they request access to network resources, the old password continues to be used and the users account becomes locked out. To ensure that this behavior does not occur, users should log off of all computers, change the password from a single location, and then log off and back on.