Error message installing Office Home and student 2010

[DGravy 0]

Bought the disk to install for 32 bit Vista OS. Keep getting 'set up is unable to proceed due to following error: -X86 platform Windows Vista SP1 is required'

Have downloaded all services - my status reads 'Windows is up to date'

any help gratefully received

[dw96 281]

Have you upgraded to Service Pack 1? I'm not sure if this appears in Windows Update, but you can get it from here:
http://www.microsoft.com/en-us/download/details.aspx?id=30