Adjust Win7 taskbar preview window Size

Step 1: Open Registry Editor (start, run ..., enter regedit carriage return, you can also press win key +r, enter regedit carriage return, you can also open Windows7 optimization master, click System Toolbox, open Registry Editor)

Step 2: Find Hkey_current_usersoftwaremicrosoftwindowscurrentversionexplorertaskband in the directory on the left

Step 3: Right in the right margin, select the new ―dword (32-bit) value, named Minthumbsizepx

Step 4: Double-click the MINTHUMBSIZEPX key value you just created, and then enter the size of the preview window you expect to adjust in the value data. The default is about 200, you can adjust to 300 try, and the right "base", then select Decimal. Click OK to close the registration form.

Step 5: Log off the user, log in again can see the preview window becomes bigger! (You can also end the Explorer.exe process before you open the Explorer process)

Change the way back: Delete the minthumbsizepx can!