Navigate to the following key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM
If the DWM registry key does not exist, right click, then select New -> Key and name it DWM.
Under DWM key, create a new DWORD (32-bit value) named UseMachineCheck, and set its value to 0.
Again, under DWM key create a new DWORD (32-bit) Value named Blur, and set its value to 0.
Again, under DWM key, create a new DWORD (32-bit) Value named Animations, and set its value to 0.
Restart the Desktop Window Manager Session Manager service in Services.