Myloginhelper.com popups

When I attempted loading grammerly onto my laptop pc, I instead got some adware junk that continuously pops up...each with a myloginhelper.com id at the bottom.  Continuous spam that I can't get rid of.  I've removed anything I can find related to it from programs and apps...but it keeps coming.  I downloaded an adware blocker the other day, no effect.  Can anyone advise?  I'm pretty sure it's a Chrome add-on...but can't find anywhere else to try to remove it.  I have Windows 10 Home & Norton 360(?) version 22.20.1.69.    Thx for any help anyone can offer....