Taskbar Preview Window Resizing method

When you hover your mouse over a picture of an application in the Windows 7 taskbar, a preview window appears to quickly preview the corresponding window contents. You may feel that the empty preview window is too small to see what's inside, so resize it in the following way.

STEP1: Open Registry Editor, click the Start button, enter regedit in the Run box, and open Registry Editor.

STEP2: In Registry Editor, enter the branch Hkey_current_usersoftwaremicrosoftwindowscurrentversionexplorertaskband in turn, right-click in the margin on the right, Select the new/dword value in turn and rename the key value to minthumbzizepx.

STEP3: Double-click the new MINTHUMBSIZEPX key value that you just opened, and then enter the size of the preview window you expect to adjust in the numeric data. The default is about 200, you can adjust to a slightly larger value, such as 300. When set, click OK and close the registry.

STEP4: Log off the user, and then log in again to see the preview window getting bigger.