The Malware scan was very quick. To do a proper job, you are looking at more like 30 mins or so.
https://www.malwarebytes.org/antimalware/ is highly rated and fixes most issues if they are caused by Malware.
I can't say what the issue is without being on the PC, but it is definitely an issue with your machine.
If it were my machine I would do one of the following:
1. Run
https://www.malwarebytes.org/antimalware/
2. Try Chrome and Firefox. Never use IE11, it is extremely insecure and suffers low performance compared to the other two.
3. Install Windows 10. I see you have the update icon in the Task Bar. Windows 7 is very old now, and an update may help.