To SP2 or not to SP2?

If it's not broken don't fix it, right? Well in the case of Windows Vista SP1, a new service pack may be a good thing to have or may be not. I'm not sure myself. For a complete list of hot fixes and security updates in Windows Vista SP2 (and Windows Server 2008 SP2, both came at the same time) you need to have Excel 2007 to download the file with that information (the file is in xlsx format); details here. At any rate, if you decide to go for it, don't forget to review how to obtain the latest Windows Vista service pack...