Right click on your computer icon or computer in start menu and select
properties or press Windows Key+Break the first section of the system
properties will show Service Pack 1 if it's installed.
Service pack 1 is a roll up of all the bug fixes and such released for
vista since it was released plus a few extra items under the hood. It is
a recommended upgrade for anybody running vista even if they are not
There were a few minor compatibility issues when it was first released
but i believe that these are all now sorted.
All feedback that I have seen is favourable with improved systems after
Would suggest you download the standalone package available 'Here'
the beginning of knowledge is the discovery of something we do not
understand.,- frank herbert