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Consider the following scenario:
Failed to import the client certificate store (0x80092024) OSDSMPClient
This issue occurs because an embedded NULL character is in the Friendly name property of a certificate. The security update 974571 prevents the action that imports the certificate when its Friendly name property has an embedded NULL character. Therefore, the certificate cannot be imported.
For all the details including a download link to the hotfix see the following new Knowledge Base article:
KB977203 - User state migration fails on a SCCM 2007 SP1 client or on a SCCM 2007 SP2 client after you install security update 974571
J.C. Hornbeck | System Center Knowledge Engineer