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The user logon error occurs when a user's cached credentials have been purged from the local computer by more recent domain user logons.
Windows Vista and Windows 7 operating systems cache credentials for a finite number of user accounts (assuming cached credentials have not been disabled).
Once the cached logon quota has been reached, the operating system will purge the oldest cached credential from the local computer so that the credentials for the next unique domain user successfully authenticated by a domain controller may be cached. The logging of the LsaSrv 45058 event indicates that the cached logon quota has been reached, triggering the deletion of the oldest user credential cached on the local machine.
By default, a Windows operating system will cache 10 domain user credentials locally. When the maximum number of credentials are cached and a new domain user logs onto the system, the oldest credential is purged from its slot in order to store the newest credential. This LsaSrv informational event simply records when this activity takes place. Once the cached credential is removed, it does not imply the account cannot be authenticated by a domain controller and cached again.
The number of "slots" available to store credentials is controlled by:
Cached credentials can also be managed with group policy by configuring:
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.
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