Windows 10 build 19042.546

{{Infobox Windows build|version=10 version 20H2| buildtag=10.0.19042.546.vb_release_svc_prod1
 * arch=x86, x64, ARM64

Windows 10 build 19042.546 is a build of Windows 10 October 2020 Update. It was released to the Beta and Release Preview channels on 30 September 2020.