Using a dual boot environment in Linux the windows partition is mounted to sda1. Before syspreping windows system the Linux command ghregedit /windows will display the version of windows installed. After sysprep and running the same ghregedit /windows the Linux command output does not display the version of windows installed. Ran the Linux command ghconfig /findactivewindows and it also not display the version of windows installed. Also ran ghconfig /windows with the same results of not displaying the version of windows installed.
Tested this with the tools from both GSS 3.3 RU4 and RU7 with same result
Release :GSS 3.3 RU4 and RU7
In order to make ghregedit and ghconfig detect windows properly, customer may need to backup bcd before sysprep and restore after.