
Microsoft has urged businesses running Windows XP to upgrade their machines to take advantage of added security features, but <A HREF="http://news.zdnet.com/2100-3513_22-5650923.html?tag=zdnn.alert">only a quarter of XP corporate machines have been upgraded</A> to Service Pack 2, according to a new study. In a study of 136,000 corporate PCs, Canadian asset tracking firm AssetMetrix found that more than one-third of the computers were running Windows XP, but only 24 percent had installed the security-oriented Service Pack 2 upgrade. Companies were initially reticent to jump to SP2 when it debuted last year, but the AssetMetrix study found that most companies weren't blocking SP2 entirely; they just had not upgraded in large numbers.