Those of you waiting to roll with Cortana's desktop bits in Windows 10 won't have to wait much longer. In fact - if you're up for it - you're going to be able to update your PC right this minute. Supposing you're a member of the Windows Insider Program. To make this happen with Build 9926, all you'll need to do is either be signed up for Windows Insider now or begin signing up now. From there, there's just a few button clicks to tap.