Win7 taskbar window preview how to set

The Windows 7 Areo desktop is very beautiful, especially the various effects of Win7's powerful super taskbar. Win7 taskbar window preview is a very good feature, but a friend responded to the author that the preview window is too small and unclear, and friends say that the Win7 taskbar window preview response is slow, what should I do?
Custom size Win7 preview window is clearer
By default, Windows 7's 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!
Click "ld/start" to enter Regedit in the pop-up "Run" dialog box. , then press the Enter key, 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 one Name the DWORD value of "MinThumbSizePx"; right click on the newly created DWORD value, select “Modify” to open the "Edit DWORD (32-bit) value” dialog box; finally check the &ldquo in the dialog box. ; decimal & rdquo; radio box and enter a specific value in the text box (recommended to enter 450), click the “ 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.
Accelerating Windows 7 Taskbar Window Preview
Compared to Vista, Windows 7 brings better Aero transparency and a new taskbar preview window. When the user mouses over the taskbar icon of the program, the taskbar preview window can preview the current display content of the open window as a thumbnail. Many people have started to enjoy the Windows 7 taskbar preview feature.
But the careful user may have found that Windows 7's taskbar preview actually has a small problem. When the mouse is moved up, it will take a while to appear in the preview window. Sometimes it will be a waste of time, then come Let it move instantly!
Steps:
1, WIN+R runs regedit
2, locate to: HKEY_CURRENT_USERControl PanelMouse
3, double-click MouseHoverTime<4> on the right, and set its value Modify from the default 400 to 100 (unit: milliseconds)
5, determine and close the registry editor