The taskbar thumbnails in Windows Vista, Windows 7 and Windows 8 allow you to have a preview of all the open applications without actually bringing them up onto the desktop. This is especially useful when you have multiple windows of the same application open at the same time. For instance, if you have a lot of instances of Windows Explorer open on your desktop, switching between each one of them in order to find out which one you want to bring up is probably going to take a lot of time. Using taskbar thumbnails, you can easily get an idea about the content within each, and you can just click the thumbnail of the required window to bring it up. However, any version of Windows does not allow you to tweak the thumbnails according to your preference, and you are forced to use the default settings for the preview. Taskbar Thumbnails Tuner is a portable application for Windows 8 that allows you to change various appearance settings for the taskbar thumbnails, including Thumbnail Size, Number of Thumbnails in Group, Horizontal/ Vertical Spacing Between Thumbnails, Margins etc. Keep reading to find out more about this useful tweaker.

When you run the application for the first time, the Windows 8 SmartScreen might prevent it from running because of the app being unrecognized. Click More info to ignore the notification, and choose Run Anyway to ignore the notification and run the application . You might have to do this with almost all third party applications, since they are not recognized by Windows 8.