WhyReboot is a small utility that shows what file operations are allegedly necessary after you install a program. In theory, it tells you if you really need to reboot after installing a file. It's not earth-shatteringly useful, but serves to satisfy your curiosity.
It's an unsafe world out there for Windows-based computers. Microsoft wants to address the problem with its new megapatch, Service Pack 2 for Windows XP.
We've redesigned the Downloads section of PCWorld.com to make it simpler to find the software you want with better search tools, more user reviews and easier navigation.