Windows Vista build 5466
This build was known previously from screenshots. It was leaked by marcoguy on 2016-12-19. This build add the "Busy" cursor on the login screen and improves the Windows Experience Index check of setup. Aero is also updated to be more sky blue than grey.
BSOD during Performance Check
You may encounter a BSOD during or after the Performance Check, just restart to get past it and to log into the operating system.