Windows Service Pack install time increases with multiple language packs installed

Applies to: Windows Vista BusinessWindows Vista EnterpriseWindows Vista Home Basic


A Windows Service Pack installation may take considerably longer than expected if multiple language packs are installed.

More Information

As more language packs are installed in the Windows operating system, you should expect the service pack installation time to increase proportionately. It is not unexpected for a Windows Service Pack installation to take between 6-10 hours with all 36 language packs installed.

Microsoft recommends that you only install the language packs that are actually needed for each specific operating system installation.