After uninstalling Tweak-XP, Tweak-XPs icon is still displayed in the control panel

The control panel must be closed before Tweak-XP is uninstalled, otherwise the control panel applet is read-only, and the uninstaller cannot remove it from the system. To manually remove the control panel icon, do this: start the Windows Explorer and delete the file txp3.cpl, which can be found in the Windows\system32 folder.