Maybe try going to 'Computer' on the home screen, then press Local Disk. That's how I deleted the toolbar from my Firefox. Maybe it might help you to.
How do I delete Bing bar?
Click window+r --> Type “appwiz.cpl” --> press enter --> Use see “bing bar” --> click “bing bar” --> Click uninstall “bing bar”.
I hope it will help you.
I hope it will help you.