Windows 8.1 unveiled: new apps, new features and the return of the Start button

MORE INFO

• Microsoft drops the Blue codename, confirms Windows 8.1 will be a free upgrade available later this year
• Windows Blue screenshot tour
• Leaked Windows 8.1 build points to the Start button's return

How big of an upgrade is Windows 8.1? Put it this way: we just might need to review the OS all over again. Microsoft just unveiled the first major update to Windows 8, and it includes tweaks to nearly every aspect of the operating system: the lock screen, Start menu, Windows Store and onscreen keyboard. As we saw in some leaked screenshots, Microsoft also updated its native apps and added some new ones, including a stopwatch and fresh calculator. In some cases, the update even changes the way you interact with the OS. Yes, that means the Start button is back (sort of). You can now snap more than two windows into place, depending on your screen resolution, and also adjust the width of those columns so that it's not necessarily an 80 / 20 split. Additionally, Microsoft revamped the way built-in search works so that it's now more of a universal search engine, serving up apps, files, settings options and web suggestions.

As you might have guessed, some of these revisions are a response to feedback Microsoft has received in the past seven months. In other cases, like with the new settings menu, they were part of Microsoft's plan all along -- the engineering team just didn't get to them before it was time to ship the first version of Win 8. As we reported earlier, Windows 8.1 will be available as a free update (in preview) starting June 26th, the day Microsoft's Build developer conference kicks off. We'd still encourage you to follow our Build coverage, however, as Microsoft will be making additional announcements then, particularly with regard to its first-party apps. Also, Microsoft is only sharing a handful of screenshots today, so we'll have to wait until June 26th to give you the full visual tour. For now, though, join us after the break as we walk you through all the major (and not-so-major) changes.