You might try what is described here
http://answers.microsoft.com/en-us/windo...fc-68b599b31bf5Down on the right corner of your desktop near the digital clock should be a drop-down arrow. Click it and you'll see the 'knctr icon'. Click the icon and then click 'Shutdown'. Then go to your control panel and 'Uninstall' that program. I've already rebooted my system and it is gone. Good Luck!!
This site tells how to access Control Panel
https://malwaretips.com/blogs/knctr-virus-removal/To uninstall a program on Windows 10 or Windows 8, right-click on the Windows Start button and choose “Control Panel” from the pop-up menu.
I've also heard of holding down the Windows key and pressing the X key to get a normal Start Menu with Control Panel on it.