Minecraft Freeze in fullscreen when going to Windows then back to it

I'm playing Minecraft fullscreen then I went back to Windows, and when I wanted to go back to Minecraft, the game was froze. I've tried F11 to put the game in windowed, but still the same. I've already waited 1 hour to test, but nothing happened. Notice that this always happens when I'm going back to Windows.
Thanks for any awnsers

Also sorry for my bad english