I had been plaqued with the Kovter Trojan for weeks.
Windows Defender kept quarantining it. Two full scans; two different times would not find it. Full House Call scan did not find it.
Yesterday I found a blog that suggested downloading/installing Malwarebytes, turning off WiFi, booting in Safe mode, then running Malwarebytes.
YAY!!!! VOILÁ ... GONE.
I am not a PC expert by any means. I was ready to go out and buy a new PC to get rid of this Trojan. Now I am SO HAPPY ... knowing I could fix this with the help Malwarebytes.
Thank you Malwarebytes for a product that even a novice can use.