If you find size of thumbnails in Windows 7 taskbar too small for your liking, you can make them bigger. You can adjust the size to your liking by following the simple steps highlighted in this article and change the Taskbar Thumbnail size. Of course, there are third-party tools available for doing the same job, but doing so manually, is always a great learning experience.
Change Taskbar Thumbnail size
Here’s how you can change the size of thumbnails in Windows. Please note that doing so requires you to make change in the registry editor so, be sure you have created a backup before proceeding further.
Open the registry editor. For this, press Win+R in combination to bring up the ‘Run’ dialog box. In it, type regedit and hit the enter key. Next, navigate to the following key
By default, the thumbnail previews in Windows 7 or Vista explorer.exe appear as Miniature Photographs. You can, if you wish, tweak the registry to make them appear like a video film cutting along with the ‘sprocket-holed’ perforated borders.
Anand Khanse is the Admin of TheWindowsClub.com, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP since then. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.