Thanks very much the thorough instructions - will do so immediately.

To answer an earlier question - yes, I have a non-free version of Malwarebytes, obtained before I switched from an ISP-supplied “free” version of McAfee. I finally (after years) dumped McAfee and installed the free version of Avast. The impact of Avast is markedly lower than McAfee - faster EVERYTHING since I made the switch (one exception - a humongous number of TCP/IP connections are made by Avast - sufficiently large number to actually generate the Microsoft “Too many TCP/IP connections attempted” warning; not a biggee since they eventually get connected, just noticed it for the first time in the XP event log). Since Avast is “new” on my system I’m not sufficiently up-to-speed on it, its quirks, its capabilities, its net worth to me (that is, not yet jumping for the non-free version). So far, however, I’m majorly liking it.