Yesterday, Microsoft announced that the Windows 10 Creators Update will begin rolling out to PCs on April 11, but if you just can't wait until then, the company offered some additional good news today. In a blog post detailing the rollout of the Update, it confirmed that early adopters will be able to manually install it beginning on April 5.
The method will be the same as it was with the Anniversary Update; you'll be using the Update Assistant application, which you'll be able to download here. The only steps necessary are to install it and run it, and the Creators Update will begin downloading.
Of course, if you really want to get your virtual hands on it right now, you can always sign up for the Windows Insider Program. Build 15063 is available in the Fast and Slow rings right now for PCs and phones, and that's the RTM build, meaning that it's the same as you would get if you waited until April 5 to manually install it through official channels. If you're in the Release Preview ring, you should see it soon as well.
If you don't choose any of these options for early adoption, you might end up waiting several months. The Creators Update will first roll out to new devices, and then Microsoft will continue to roll it out in phases based on the feedback that it receives.