After trying many loaders there is one that actually works: "Working Windows 7 LOADER - based on WOW 7.0" My notebook is finally activated with Windows 7 7600. Solracna
WOW7 is not an emulation. It works by injecting a v2.1 SLIC into memory exactly as if it had been read from a bios. If I recall correctly, HPs business laptops use a proprietary bios that can not yet be modded (if ever) so that the only viable option for people with these laptops is to use a soft-mod or soft-loader of some sort.