How to recover after win7 system closes task thumbnail

                                                                                                                                                                                         Win7's taskbar thumbnail function is a more common and useful function, but what can I do if it can't be opened after being turned off for various reasons? Let's take a look at how win7 closes the task thumbnail.
1, first click to start Menu, select Run, or press WIN+R

Enter gpedit.msc in the Run window to open the Group Policy Editor


Select User Configuration - Administrative Templates on the left - Start Menu and Taskbar this option

Select to close the taskbar thumbnail Double-click to open

Set to not configured or disabled, turn off and select it is enabled, it will be OK

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