Vista SP2 can not be installed reasons and solutions

Due to the release of SP2 Pre-Beta, many people update SP2 according to the method given in the previous days to update the script and modify the registry method, but only a small number of people have successfully updated, many testers failed to update to SP2. . The following list of the latest solutions, pro test effective, I am very grateful to the original author forgetmeg, the original text is as follows: After 24 hours of sleep analysis, multiple WindowsUpdate.log shows that the real reason for not being able to update SP2 is that everyone's windows update version is wrong, the correct version number Version 7.2.6001.784 Only this version number can be updated, my machine does not know why this version number is not updated: 7.0.6001.18000 Causes me to not update SP2. This update was detected by Microsoft. View: How to get the latest version of Windows Update Agent to help manage computer updates The specific update method is as follows: Check your own Windows Update version must be 7.2.6001.84 Not to go to the above address 1. Run the update.bat script file 2. Install English language pack! (Do not need to change the system default language) Install the KB955430 patch (you can see sp2 after installing the patch) 3. Modify the default system installation language in the registry [HKEY_LOCAL_MACHINESYSTECurrentControlSetControlNlsLanguage] "Default"="0409" "InstallLanguage"=" ;0409" 4. Delete the following registry key [HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlMUIUILanguageszh-CN] ZH-CN item 5. Find the latest update again, SP2 update finally appears (this search process feels a little longer, please be patient) 6. Install SP2 update, about 290MB update package is installed in 3 stages. After the installation is finished, change the key value of 3 or 4 items of the registry back (run two reg files)