Should I go back to Windows 7 or stay in Windows 10?

The reason I ask this is because of the game Minecraft. I know there are rumors for 1.9 to come but it's not on a release yet. I have Windows 10 but I can't play the java version of Minecraft because it's not supported and I know I could play the beta edition of Minecraft Windows 10. I feel like going to Windows 7 because I really want to play the 1.9 update of MC soon. Should I stay with Windows 10 or go with Windows 7?

Added (1). You know what I mean right?

I have Windows 10 and can play the Java version of Minecraft fine. There's something wrong with your PC, not the OS.