I am trying to install KB3171021 (SQL Server 2014 SP2) on my production SQL box. It fails with Code 851A0042.
This is the only information in the Event Log: Installation Failure: Windows failed to install the following update with error 0x80070643: Microsoft SQL Server 2014 Service Pack 2 (KB3171021).
I have verified the system and SQL server program disk have space on them.
Regards,
Ray