Time to upgrade, but if you prefer older Windows, Taskbar Tweaker is free and will let you tweak the taskbar.

Features: Show standard menu on right click instead of jump list. – Close or focus a window on middle click instead of running a new instance. – Disable grouping of windows by file path or application id.

Cycle through windows of a grouped button on left click instead of showing thumbnail preview. – “Open with” while dropping a file on a taskbar button instead of pinning. – Disable thumbnail previews.

7 Taskbar Tweaker needs to start with Windows to apply the custom settings.

Download 7 Taskbar Tweaker

TheFreeWindows.com