Enable Aero on old Computer

Windows 7 is automatically disables Aero features on slower system. If you want to enjoy the smooth windows transitions and transparency compromising performance. solution is here.

1. 
   
   Press Windows+R key and type regedit and press enter.
2. 
   
   Now, Navigate toComputer\HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM
3. 
   
   Right click on DWM and create new DWORD(32)bit Value and Name it UseMachineCheck and set value to "0" Press OK to Save.
4. 
   
   Similarly create entries Blur and Animations DWORD(32)bitValue and set its value to "0"
5. 
   
   Now, Goto Command Prompt and type Net Stop uxsms and Net Start uxsms
6. 
   
   Finally right click on desktop then select personalize>Windows color and appearance and select Windows Aero from the Scheme Menu.