Windows 10 for PCs build 10537 has been leaked. Feel free to download it and install it however and wherever you like, but keep a few things in mind.
This is a leaked build. I do not recommend installing it on a daily driver. I have found that the latest Insider Previews are just fine for a daily driver, but there’s a reason that Microsoft hasn’t pushed this to the fast ring yet.
Also, historically, those that install leaked builds do not get updates, so don’t be surprised if, after installing this build, you don’t get the nest Insider Preview build.