Normal default browser is Chrome, but IE is now the default for the time being. There are numerous popups appearing in some web pages. Many links and videos are clicked in Facebook. The computer is used by a family member to frequently go to Facebook and play games there such as Scrabble and Words with Friends. I can't seem to paste the log files, so I will have to attach them. A threat scan with Malwarebytes, using the latest version, finds nothing. All of this is leading me to suspect an infection of some sort. When I try to fix that, can't get past trying to correct the computer's system time, which is off by 4 minutes. When I attempt to fix MSE using Microsoft's tools, I can't get their diagnostics to run. The date of the last restore point matches the date of the last MSE definition file that was downloaded. In the process of troubleshooting the issue, I discovered that Windows 7 hasn't set a restore point since January.
In this case, MSE appears to function normally, and a scan finds nothing, but it's using a definition file that's 6 months old. I searched this forum's threads and the closest symptom I could find was MSE opening momentarily, then closing.
