Most annoying thing in Windows 8's appearance, beside Metro and Charms Bar of Desktop, is transparent Taskbar. It does not fit the opaque window frames and looks ugly.
With help of this simple and lightweight application you will be able to make your taskbar Opaque in any time you want it. It does not stay in memory and does not consume your PC's resources. You can close it after you have disabled the transparency.
Opaque Taskbar for Windows 8 has special option to run at Windows startup. Please note that Windows 8 uses delayed start for desktop apps, so your Taskbar will become opaque with some delay.
Opaque Taskbar for Windows 8 is free, portable application and does not require to be installed. It is compatible with Windows 8 x86 and Windows 8 x64.