Everything but the last few bug fixes on Service Pack 2 for Windows Vista is now available for your upgrading pleasure. Grab it if you want better search, Bluetooth, Blu-Ray, and all the system fixes. Like any release candidate, Microsoft doesn't want you to risk putting this batch of upgrades, fixes, and feature tweaks on a system you couldn't stand to see get buggy. (EDIT: And, as the How-To Geek wisely counsels, you'll have to fully uninstall a release candidate beta/RC before you can install the official release later on). Most of us who know development, though, know that, for the most part, they're pretty solid builds, and some may want to see their Wi-Fi resuming, application compatibility, and other nagging problems adressed in SP2 get fixed right quick. One big caveat of SP2 is that, unlike most service packs from Microsoft, you'll have to have SP1 installed already to install it. Microsoft says that's a package size consideration. The SP2 Release Candidate is a free download for systems running Windows Vista SP1 on 32-bit, 64-bit, or Itanium systems. It's labelled Beta in the links below, but the build is the release candidate. Thanks, Emil!