How to adjust the size of the taskbar preview window in win7 system

1. Click the “Start” button in the lower left corner of the win7 desktop, and then click “Run” to display the following image:

2. Enter the “regedit” command in the running window and press it back. Confirm the car key, as shown below:

3, open the registry editor and open the folder "HKEY_CURRENT_USER", and then open the "Software— Microsoft— Windows— CurrentVersion— Explorer--Taskband" file. Folder, as shown below:

4, then create a new “Dword” value in the "Taskband" folder, name it "Minthumbzizepx", as shown below:
< Br>5, double-click to open the "Minthumbzizepx" object, we will modify the numerical data to "300", (if this value is still small, you can also increase the size), and finally click the "confirm" button, as shown below: