In an attempt to download Mozilla Firefox, I unintentionally got it from a rogue site, which then installed Vosteran malware on my computer. It took over my browser (IE10) and I had to download SpyHunter4 to get rid of it. However, there is still one thing going on: my default search engine still says “Google” but I can’t “Remove” it- and when I click on it in Manage Add-ons, it says the top result is “”. Unless I click “disable top result”, my computer continues to use Yahoo as my default search engine despite it not being listed as my default (and the fact that the default program can’t be removed as per above)- so I am obviously still infected with it. How do I fix this? SpyHunter doesn’t seem to notice this problem.