For those of you who have been holding out on switching over from XP to Microsoft’s latest OS, now there’s absolutely no reason not to move on to the next one. Windows 7’s first service pack is now available to download. Though you won’t notice any UI enhancements, SP1 promises to keep lingering bugs in check and grants you access to all of Microsoft’s future OS improvements and updates. If Windows Update has yet to inform you about the news, manually check for the update or click here. (And as for you non-converts Windows 7 may share aesthetics with its buggy predecessor Vista, but you’ve nothing to fear, especially with SP1 under its belt.)