Download the Minimal Windows 7 Theme Pack zip.
Other tricks to maximize screen space and reduce clutter:
- Auto-Hide or use Small Icon Mode on the Taskbar by right-clicking on an empty portion of the Taskbar and clicking Properties.
- Reduce the size of the recent items list and jumplists by right-clicking on an empty portion of the Taskbar and clicking Properties then clicking Customize.
- Hide unneeded notification icons by the clock by right-clicking the clock and clicking Customize Notification icons.