Open your registry and browse to the following: HKCU-Software-Microsoft-Windows-DWM-Composition Set this to 1. HKCU-Software-Microsoft-Windows-DWM-Composition-Policy Set this to 2. Unless you reboot, you'll have to take one more step and restart DWM by opening the command prompt (must "run as" administrator) and type the following: 'net stop uxsms' 'net start uxsms'