Microsoft has now released ISOs for Windows 10 Insider Preview Build 10130.
Follow these steps to download Insider Preview:
Sign up for the Windows Insider Program, if you haven’t already.
Read the system requirements.
Click one of the Download links on this page to download a special file—it’s called an ISO file—that you can use to install the preview.
When the download is complete, transfer the ISO file to installation media such as a USB flash drive or DVD.
Double-tap or double-click setup.exe from the installation media, and then follow the steps.
Product key: 6P99N-YF42M-TPGBG-9VMJP-YKHCF