Win7 theme is disabled

This morning did a silly thing, when the computer turned on, a guard reminded the power-up speed beat the national 0.2% of the computer, after the point of optimization ... Then there was the next scene:

Win7 The following theme can not be used, can only use that retro (very ugly style, look very uncomfortable).

Workaround:

The topic cannot be used because the service that launches the Win7 theme is banned when you click Optimize.

Only restart the Themes service, computer (right-click)-Management-services: Locate the Themes service, restart it, or disable it before booting.

Ko!

Optimization is risky, click to be cautious.

Win7 theme is disabled