Windows 7 - 0x8024801B WU_E_DS_SCHEMAMISMATCH The schema of the current data store and the schema of a table in a backup XML document do not match.

This article lists the error codes for Microsoft Windows Update. You can use these error codes to verify information from the Windows Update log file. The log file is typically located in the following folder:

%systemroot%\windowsupdate.log

Error codes that the Component Based Servicing (CBS) interface methods return

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