KB973879: Or, How Microsoft “Inadvertantly” Pushed SP2 To All Vista Machines.

Anyone in the computer repair industry knows, when an update comes along that just doesn’t work properly, whether it be an operating system patch, application patch, or a new version of a driver, that singular bad update becomes the bane of all technicians for anywhere from a few weeks to months, depending on the app it’s patching and the conditions required to recreate the issue.

This was one such instance. On Tuesday August 25, 2009, Microsoft released the KB973879 update to the Microsoft Update service. Since many Windows-based computers run with automatic updates enabled, this update was installed, which was released to correct an infrequently-noticed error that only occurs during the installation of Vista Service Pack 2. However, it appears to have been tested incompletely as on many computers (most of them, from our informal observations, appear to be HP notebooks for some reason), the installation of this patch will cause a severe bluescreen issue (0x7E). This will only occur on 64-bit editions of Windows Vista SP1 however.

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