Hi, Windows Update is failing. It takes a long time to open then says "find out more about free software from (null)" as in the screenshot: http://radianceseeker.dreamhosters.com/windows-update-failure.20150414.png Clicking "Check for updates" after that gives the message "Windows Update cannot currently check for updates, because the service is not running. You may need to restart your computer." As far as I can tell, the service is actually running, and in the services list it's shown as Started and configured as Startup type: automatic (delayed start). I don't know what the problem is. On the chance that it's malware-related, I'm running a scan following the instructions here and will post FRST result below. Thanks for taking a look, I appreciate it very much.