why itunes I do not appear on my computer screen?

Greetings rafivhazero,

Thanks for using the Apple Support Communities!

From your post, it sounds like iTunes is not launching as expected when you try to open it on your Windows computer. If this is the case, I suggest reading over and working through the steps outlined in the following article.

Fix unexpected quits or launch issues in iTunes for Windows - Apple Support

Have a great day!