Why I need to unlock the game everytime? I use the same computer,but I need unlock that when I play the game,can you help me,thank you very much!

I shouldn't be nessesary to unlock every time. Last time I unlocked game was after last update.

Maybe windows doesn't safe register?

Maybe I should uninstall it and install again from disk C to disk D.

You could check out these threads:
https://www.lfs.net/forum/thread/63196
https://www.lfs.net/forum/thread/46476

Hope it helps!

Thank you very much,let me try later