18Mar/080
Windows Vista Service Pack 1 (SP1)
Windows Vista Service Pack 1 (SP1) is available. Before installing it, you might want to read more about it at...
Microsoft TechNet Windows Vista TechCenter SP1
The 32-bit version is huge weighing in at 434MB. The 64-bit version is, un, huge-er 
at 762MB. And, be aware that some applications, especially security related apps, might break after SP1 is installed.