Using firefox and also microsoft edge, my windows 10 pc opens a new window with an ad in it every time I click on a link. This happens independent of opening any particular website. Malwarebytes identifies this as "adware.injector", with problem files including nss, ssl, cert.db, 2 hklm paths and inetfiltersvc as potentially threatening files. It will quarantine and delete all the problem files, but as soon as I restart the pc they're all back. The blocking software identifies the domain as cdn.immereeako.info. Malwarebytes will give me real time protection by blocking the action of the trojan, but I don't want to pay for it indefinitely, I want to remove the virus. Any suggestions for where to look or what other (ideally free) program will actually locate the triggering file and kill it?