Microsoft just turned 50 and there's no better time to revisit Windows logos. Here's a brief on Windows Logo evolution.

The photo you see above -- the default wallpaper for Windows XP -- is probably the most recognizable image in the world. What you probably didn't know is that it's a real photo, called Bliss ...

Windows XP Service Pack 1 (SP1) provides the latest security, reliability, and performance updates to the Windows XP family of operating systems. OS: Windows XP. Category: System Updates.