Almost one month after the release of Windows Vista Service Pack 1 (SP1) in five languages – English, French, German, Spanish and Japanese, Microsoft finally announced the availability of Windows Vista SP1 in 31 more languages as of Tuesday.

On the Windows Vista Team Blog, Chris Flores noted on behalf of Microsoft: “Starting today, users will be able to choose to manually install Windows Vista SP1 via Windows Update or download the standalone installer from the Microsoft Download Center (x86 and x64) for any of the 36 supported languages.”

Flores also added that TechNet Plus and MSDn subscribers will be able to download DVD images of Windows Vista with SP1 in some languages as of April 15, while the rest of the languages will become available in 2 groups over the next few weeks.

“Windows Vista SP1 will bring some great improvements to PCs running Windows Vista especially in the areas of security, reliability, and performance,” the same blog notes.

When asked about a date for an automatic update, a spokesperson for the company responded, as quoted by Computer World: “We want to ensure customers have the best possible experience with Windows Vista, including installing SP1; this has always been our priority. Until SP1 is automatically distributed via Windows Update, consumers are able to download SP1 manually using Windows Update.” The conclusion: users still need to wait for an automatic download, and there’s no news on a possible date in the near future.

In the meantime, here are the 31 languages added to Windows Vista SP1: Arabic, Bulgarian, Chinese (simplified), Chinese (Traditional) and Chinese (Hong Kong S.A.R.), Croatian, Czech, Danish, Dutch, Estonian, Finnish, Greek, Hebrew, Hungarian, Italian, Korean, Latvian, Lithuanian, Norwegian, Polish, Portuguese (Brazil) and Portuguese (Portugal), Romanian, Russian, Serbian (Latin), Slovak, Slovenian, Swedish, Thai, Turkish and Ukrainian.