try to search in program file as name Logitech , In logitech folder there is one file name uninstall. then try to uninstall from that Uninstaller.
Or go to control panel > in program features , you can search the logitech driver software. from here you can also uninstall that.
I recently purchased a logitech wave cordless keyboard and mouse and am having problems installing the SetPoint 4.0 software. I have the logitech icon, but it is missing the needed tabs to program the keyboard and mouse keys. I contacted Logitech support a number of times and have tried their suggestions - mainly a clean install (deleting the program from my computer and downloading the latest software from their website). My problem is that I am unable to find the program on my computer to uninstall. Does anyone have an idea on how I can uninstall this software? My operating system is Windows Vista x64.