Internet browser problems...?

[chandra]

Just restore your internet explorer to factory settings. You could later update with windows updates. Go to internet options, and then on the advanced tab, click reset. It will reset. Please close all programs before attempting this.
Then uninstall and reinstall your other browsers. Your problem will be over.(preferably with revo uninstaller free version). You could select the browser, and select the 4th option. It will create restore point and then uninstall wholly.
You should have only one antivirus program. Malware bytes is the program that helps you clearing malware trojan rootkit etc.