Crash by Windows-button

I don't have that issue. I'm on Windows 7 Pro with Java 7. My window just gets unfocused. Mabe screenshots/ video?

Do you have the crash report?

We need more information to be able to track this.

no, it gives no crash report, minecraft easy closes, without any windows or minecraft crash report!

Crash Report

This is caused by your graphics driver - due to being Intel. This is pretty much out of the hands of Minecraft Dev's.

Resolved as invalid, since not a crash in Minecraft. If you need technical support, go to http://help.mojang.com/customer/portal/articles/364794-where-can-i-find-more-help-and-technical-support-