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1.Click on Start menu.
2.Type the following text into the Start Search box: Aero and press enter.
3.Select “Find and fix problems with transparency and other visual effects” from the menu (i.e. control panel).4.An “Aero- Troubleshoot computer Problems” wizard dialog will appear.
5. Click on Next button.
6. The troubleshooting wizard will try to detect any problem by running a series of checks against various components required to make Aero works and running, such as video memory, Desktop Windows Manager (DWM) service, color depth, theme, power settings and etc. At the end of the analysis, the wizard will attempt to fix the issues related to Aero service and restart the Aero feature.