thank you for your message.
Unfortunately the information provided on our website is not up to date and is not correct.
If you take a look at https://blizz.com/en/ (an not in other languages) you will see that Blizz is supported only starting from Windows 7, so Windows Vista is not supported, I am sorry.
I already asked to our Marketing department to change the wrong information on the non English web version in order to avoid such misunderstanding.
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