Microsoft’s Patch Tuesday for October 2009 had a big list of updates 13 to be exact, most of which have been rated as critical. Users are recommended to update it as soon as possible.

windows patch thumb Download Windows Vista October 2009 Security Update & Patches

Get Complete list of Vista Security updates released in year 2009

We recommend users to install Service Packs before trying to above given updates:

Windows Vista Service Pack 1

Windows Vista Service Pack 2