Installation of the Cumulative Update is similar to the installation of a Service Pack.
Cumulative Updates are not fully regression tested.* Since January 27, 2016: Microsoft recommends ongoing, proactive installation of SQL Server CUs as they become available.
I was making a virtual machine of a fresh from the CD installation of Server 2003 R2 and upon the first update attempt came up with a 0x80190194 error code in IE6 which complained of a Windows update error.
I was setting up a couple of notebooks with new hard drives and fresh installs of Windows XP Professional as that's what their restore disks & COA (Certificate of Authenticity) said they were sold with.Invalid Cast Exception exception when you run an application that calls the Server. Could not redo log record"924264 FIX: The metadata of the Description object of a Key Performance Indicator appears in the default language after you define a translation for the Description object in SQL Server 2005 Business Intelligence Development Studio926611 FIX: SQL Server 2005 may not send a message notification that is based on the specific string in the forwarded event when a computer that is running SQL Server 2000 forwards an event to a computer that is running SQL Server 2005926285 Fix: Error message when you convert a column from the varbinary(max) data type to the XML data type in SQL Server 2005: "Msg 6322, Level 16, State 1, Line 2 Too many attributes or namespace definitions"923624 FIX: Error message when you run an application against SQL Server 2005 that uses many unique user logins or performs many user login impersonations: "insufficient system memory to run this query"926493 FIX: Error message when you restore a transaction-log backup that is generated in SQL Server 2000 SP4 to an instance of SQL Server 2005: "Msg 3456, Level 16, State 1, Line 1.When I first wrote this article, it applied to a Windows XP system.In another scenario, Windows Update's GUI is endlessly looping around on itself and never actually updating your system.Different symptom for some of the same types of problems!