Method One
1. Right-click Properties in the blank space of the taskbar.
2. Go to the Taskbar and Start Menu Properties interface, click the Taskbar tab, tick the "preview desktop using Aero Peek" tab below, and click OK.
Method Two
1. Right-click the "Computer" icon on the desktop, clicking the "Properties" button.
2, the left column click the "Advanced system Settings" item.
3, enter the "Advanced" tab interface, click the performance of the "Settings" button.
4, enter the Performance Options window, click the "Visual Effects" tab, in the Windows Appearance and performance Settings list to find "Enable Aero Peek", tick, click OK.
Method Three
1. Click the Start menu in the lower-left corner and open Administrative tools in Control Panel.
2, under the management tools and then open the "service."
3, in the right window to find the name "Desktop window manager Session Manager" service, double-click to open.
4, pop-up interface, click the "General" tab, click on the launch type of the Drop-down box, select "Automatic."
5, the service state click the "Start" button, and finally click "OK" to close the Service dialog box.