Who told you it was impossible? Let me be clear, the things Windows support people say are "impossible" certainly are possible, they just aren't recommended or authorized by Microsoft i.e. Breaking License Validator for endless Valid activation.

The really "impossible" ones often require a lot of work, such as patching dlls or exe files, they're still possible though. Microsoft and their stans can argue "but security" but the fact of the matter is that windows is already insecure garbage, it's not going to get any better and arguments that it will are almost 100% cope. If security was a real concern they would've jumped ship long ago to a Unix system like Linux.