Disable Taskbar Transparency (Registry Tweak)

Windows Registry Editor Version 5.00

; Disable Taskbar Transparency
; Turns off the translucent taskbar/Start menu effect for a small performance gain.
;
; Usage: double-click to apply, then sign out and back in (or restart
; explorer.exe) for it to take full effect. Back up your registry first
; if you're unsure (File > Export in Registry Editor).

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize]
"EnableTransparency"=dword:00000000