Win7 computer does not show how to minimize the window

        1. First, let's move the mouse to the taskbar below the win7 Ultimate computer. After that, we will find a blank space, click the right mouse button and select Properties.
2. In the pop-up properties window, we switch the interface to the process column, after which we need to find the explorer.exe option in the process list in the window, we right click on the explorer.exe option, Select End Process in the slide down menu.
3. After the completion, we also press the win+R shortcut on the win7 Ultimate computer keyboard to open the computer's running window. In the open running window, we type regedit and click Enter, so that we can open Win7 Ultimate computer's registry editor window.
4. After that, we will locate the interface in HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer in the open registry editor window, then find the three options StuckRects2, Streams, StreamsMRU in the right window. And delete them all.