WIndows 7 - 0x8024801A WU_E_DS_INVALIDOPERATION A request was declined because the operation is not allowed.

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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