Microsoft on Wednesday announced that a long-awaited high-end version of its Windows XP operating system, intended to compete with Unix, is entering customer testing. Microsoft announced two versions: ...

Microsoft Corp. released an updated test version of Windows XP Service Pack 2 late yesterday and said it’s on track to deliver the security-focused update in the third quarter. The long-awaited ...

New tests have revealed that Windows XP with the beta Service Pack 3 has twice the performance of Vista, even with its long-awaited Service Pack 1. Vista's first service pack, to be released early ...