We can uninstall Yahoo toolbar software from Windows by doing the following steps.
Open Programs and Features wizard. You can open this by running appwiz.cpl from Run window. Alternative way to open this is to type ‘Programs and Features‘ in the start menu search box.
Look for the entry ‘Yahoo! Toolbar’ in the list of programs installed on your computer.
Select the ‘Yahoo Toolbar’ entry and click on ‘Uninstall’ button.
Alternative way to uninstall Yahoo toolbar
We can uninstall Yahoo toolbar by running the uninstaller that gets installed on your system along with the toolbar software.
This uninstaller(unyt.exe) can be found in the location c:\Program Files (x86)\Yahoo!\Common
Just run unyt.exe from the above location and yahoo toolbar will be uninstalled from the computer without any further action from the user.