Announcing Windows 10 Insider Preview Build 18945 Hello Windows Insiders, today we’re releasing Windows 10 Insider Preview Build 18945 (20H1) to Windows Insiders in the Fast ring. If you are one of the few Insiders who accidentally received Build 18947 earlier this week, see this forum post where we recommend you rollback to the previous build and then update to today’s build to be on the best path forward. IMPORTANT: As is normal with builds early in the development cycle, these builds may contain bugs that might be painful for some. If you take this flight, you won’t be able to switch Slow or Release Preview rings without doing a clean-install on your PC. If you want a complete look at what build is in which Insider ring, head on over to Flight Hub. You can also check out the rest [ more… ]