Blog Post
Hi Toby BorisYeltsin
Bit of a rambling reply but I hope it helps.
Yes, Microsoft still supports Windows Vista, however, they only offer “Extended Support” (ending in 2017). In April 2012 they stopped “Mainstream Support” for Vista. In Plain English, this means that Vista will continue to receive security updates (patches to fix bugs and plug security holes), but it won’t receive operating system enhancements and design changes. Software that relies on operating system enhancements to deliver improved functionality may not work on these operating systems. Some of the changes we’ve made to our installer means that AccountRight no longer works with XP or Vista. You may have noticed that Microsoft Office 2013 also doesn’t work with Vista.
You can find information about Microsoft’s lifecycle support here
With regard to needing to upgrade your hardware, I’ve found that computers that can run Vista can also run Windows 7. As for needing an i5 processor, it’s only a recommendation, not a requirement. We recommend it as we know there are times when running a faster processor will be beneficial. Business often have many apps running at the same time, like Outlook and other business software, or use their computer as a server. If you’re only running AccountRight I’m sure you'll get away with lower specifications.
Regards
John