Quickly Change Icon Size in Windows 7 miatech March 22, 2012 No Comments on Quickly Change Icon Size in Windows 7 In this tutorial, I’ll show you how you can quickly change your icon size in windows 7. 1- Click on an empty space on desktop 2- Press and hold the “Ctrl” key 3- Using the mouse wheel, scroll up or down until you get your desire size. Share This! Related posts: Recovering the Recycle Bin Icon in Vista. Useful VLC Keyboard Shortcuts Fixing Geany Execute Command For Python Programming Installing Windows XP NTbackup on Vista.