Hello minhchau135,
Welcome to the forum.
Nothing wrong with Lazarus.
May I ask you, why you want your Lazarus to look the same as your friend's? You and s/he were not using the same OS. Yours is Windows 7 and the other is Win8 (or above). Even you both are using the same version of Windows, you still need to make sure you both using the same theme, same color scheme, enabling/disabling the Windows Aero feature, etc.