Reasons and solutions for Vista SP1 not being automatically updated

                  In order to help users solve the problems in the Windows Vista SP1 upgrade, Microsoft released a new knowledge base article KB948343, which explains in detail why Vista SP1 cannot be found on Windows Update, and how to deal with it. Strong guiding significance.

If Windows Update and Automatic Updates can't find Vista SP1, then see if you have one of the following 8 problems:

1. Already running Vista SP1.
2, the system language is not in the first release version of Vista SP1.
3, use the Windows SP upgrade package interception tool to prohibit automatic updates.
4, tried to install Vista SP1, but failed due to file or registry conflicts.
5, hardware device driver or device software is not compatible with Vista SP1 (see below for details).
6, has installed the Vista SP1 beta, but has not been uninstalled.
7, once used a third-party tool vLite configured system, removed some of the system components needed to upgrade Vista SP1.
8, has hidden the optional updates provided by Windows Update, and these updates are the prerequisite for upgrading SP1.

their solutions in order as follows:

1, check the system version, uninstall the already installed Vista SP1 beta.
2, Vista SP1 is currently only available in English, French, German, Japanese and Spanish, and the other 31 languages ​​will have to wait for a while.
3, please disable the Windows upgrade package interception tool.
4, online check solution.
5, in order to ensure the reliability of the system upgrade, Windows Update will not provide Vista SP1 to systems containing some device drivers and application software, because Microsoft believes that these drivers, programs and Vista SP1 have compatibility issues. As follows:

audio device driver:

Realtek AC97: 32 bit Alcxwdm.sys, 64 bit version 6.0.1.6242 Alcxwdm64.sys or older
SigmaTel: 32 bit Sthda. Sys, 64-bit Sthda64.sys version is 5.10.5762.0 or older
SigmaTel: 32-bit Sttwt.sys, 64-bit Stwrt64.sys version is 5.10.762.0 or older
HD Audio: 32-bit Chdart.sys , 64-bit Chdart64.sys version is 4.32.0.0 or older
Creative Audigy: 32-bit Ctaud2k.sys version is 6.0.1.1242 or older; 32-bit P17.sys all versions (this was originally Windows XP driver)

biometric fingerprint sensors:

Intel Display: 32 bit Igdkmd32.sys, 64 bit version Igdkmd64.sys between 7.14.10.1322 7.14.10.1403

and other devices:

Texas Instruments smart card controller: GTIPCI21.sys file version 1.0.1.19 or older
Sierra wireless AirCard 580 wireless network card: Watcher.exe program version 3.4.0.9 or older
game Symantec Endpoint Protection, Network Access Control client: 3 2 Wgx.sys, 64 Wei Wgx64.sys version you can find is 11.0.1000.1091 or older

users on the new version of Windows Update drive, or ask

6 to the service provider, in Upgrading Vista SP1 based on Vista RTM can be uninstalled directly; directly installing the integrated version of Vista SP1 beta must be upgraded directly to the official integrated version, or uninstall and then install RTM and SP1.
7, do not use vLite to blindly "weight loss" system.
8, select "Restore hidden updates" on Windows Update, try to install all the upgrade patches provided, including KB935509, KB938371, KB937287 and so on.