Adjust the registry to make the Win7 preview window clearer

By default, the Windows 7 taskbar preview window is too small to clearly preview the general content of certain files or programs. In fact, you only need to adjust the size of the Windows 7 taskbar preview window to solve this problem.
First click “Start/Run”, enter Regedit in the pop-up "Run" dialog box, and then press the Enter key to open the Registry Editor and navigate to the "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorer Taskband" branch Then in the blank area on the right, select “New/DWORD (32-bit) value”, follow the prompts to create a new DWORD value named “MinThumbSizePx”; right click on the newly created DWORD value and select “Edit” ” Open the "Edit DWORD (32-bit) value & rdquo; dialog box; finally check the "decimal" box in the dialog box and enter a specific value in the text box (recommended to enter 450), click “; OK & rdquo; button.
After completing the above operation, press the “Ctrl+Alt+Del” shortcut key to bring up the “Windows Task Manager” window, and then click the menu “File/New Task (Run)” command , follow the prompts and reload the explorer.exe process.

This way, when the mouse is moved to the icon on the taskbar, you can clearly preview the general content of the opened file or program. A friend with this need may wish to give it a try.