Problem Description:
Windows 7 user interface is very gorgeous, in order to get as large as possible viewable area, many users like to set the taskbar to automatically hide. Depending on your job needs or your personal habits, you can also drag the taskbar up and down.
You may find, however, that when the taskbar is docked to the left of the desktop and hidden, the mouse will not be able to eject the taskbar by simply displaying the program's thumbnail in the past.
Workaround:
The easiest way to avoid this problem is to try to control the number of taskbar icons and not to go beyond one column.
If the number of icons required for work is necessarily more than one column, you can select one of the following methods to use:
1. When you move your mouse to the taskbar, move in the direction shown below: Move the mouse to the Start menu area, or move to the notification icon area.
2. Turn off the Aero transparency effect.
Right-click in the desktop space and select personalize.
Click Window Color.
Computer knowledge
Uncheck "Enable transparency effects".
3. Disable the "Desktop Mix" feature.
Open the Start menu, right click Computer, and select Properties.
In the upper-left corner of the System window, click Advanced System Settings.
If you eject the User Account Control window, allow it to continue.
Click the Settings button in the Performance bar.
Under current visual effects settings, uncheck "Enable desktop Combination" and press "OK" to exit.