Reinstall Minecraft and you can drag the download file to a USB stick?

When the .Exe file was saved and listed, it was not deleted. So you can run it again and thus download Minecraft new, or even on another PC via USB stick and install there.

Simply log on to the official Minecraft site and then download it from there. Yes, yes.

But I also have the exe file

… And I do not want to pay anything.

Yes you can? It's not a problem either, since you can't play the game without an account anyway.

Note: A file can't delete itself, so logically the .exe file will not be deleted.

You can also install Minecraft directly on a USB stick and play from there.

It is already clear that the execution file can't be deleted automatically, that I should know exactly as a computer scientist, to understand. If I uninstall minecraft, I can re-install it via the exe, or with the download map with the code on the official minecraft.net page. I can also pull minecraft.exe on a USB stick and activate it on another PC, right?

What does activate?

You can install it, but that does not mean you can play it.

Should you as a computer scientist actually know

Activate (execute) name for .exe file, but no matter. Why can't I play it, can I sign up with my account?

Execute .exe = execute =. Execute! = Activate.

You can play it, but you must log in with your account. According to your answer to Noam0's answer, you do not want to pay anything. In order to play the game with your account (which you use to log in), you must have bought it… Unless you want to play the demo.

I bought it, so I could play it Thanks for your help! (Could you also answer my mod question)

It costs nothing to sign up with your own Minecraft account! And then press Download! Is much easier than copying the exe over detours