No, you can't; in this vista era, DMW was supported by a service that you could switch off and then disallow all visual effects. Starting with Windows 7, the desktop window manager became a more vital part of windows, which is significant for creating graphical user interfaces. However, this integration is deepened with Windows 8 and 10. The best part is that DMW is getting better at managing resources, and you shouldn't really need to switch it off.