On March 12, 20‎20, ‏‎11:29:09 AM toronto time I had downloaded gpg4win-3.1.11.exe and installed it later accepting defaults offered by install dialog. Later when I start chrome browser it has started showing 4 pages when started instead of my usual google search page which I had customized to show my favorite shortcuts. New tab gives my default page but every time I start chrome these pages (with some variations) show. I had never customized chrome to show these pages at start. These pages are: mysearch.avg.com, bing.com, search.conduit.com and google.com (last one with "I'm Feeling Lucky" link not the one my New Tab I have customized to show).