Windows Vista build 5520.16384

Windows Vista build 5520.16384 is a pre-RC1 build of Windows Vista. This build was leaked on 23 January 2020 as that is listed on a thread in UX.Unleaked and this build was later leaked in 1 February 2020.

This build's watermark identifies the system as a Pre-RC 1 build, rather than just a RC 1 build.