an extension was installed by some program I downladed. I removed the extension but the hack is still in place. I've used several reputable anti-malware programs including windows defender, Malwarebytes, spybot, none of them are finding the problem. I used a program i'd never heard of called plumbware which claims I've got searchknow.adware I believe it because opera was opening new windows when I clicked links. links I know don't contain pop up links. of course plumbware wanted money. i'd rather reformat. I removed opera but the problem persists because when I reinstall opera it happens again.
MS Edge seems to work fine. but i'd like to get opera working again. has anyone experienced this and found a solution?