Grab the preview release at the link below, and check out the new feature list here. Windows 8.1 releases later this week as part of the BUILD Developer conference.
Windows Server 2012 R2 Preview Available For Download
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If your air conditioning is costing too much this summer, look into a whole-house fan. They cool your home by removing the hot air and exhausting it through windows or soffits in the attic.
Last week, Nvidia announced plans to roll out a software-only version of G-Sync, its Adaptive Sync tool for PC displays. And now, with GeForce driver 417.71 out in the open, the small group of people who mix Nvidia graphics cards with FreeSync monitors can try out this new implementation of G-Sync.