Hello. I am trying to fix a friend's laptop computer that has Windows 7 installed.
When he gave it to me it was infected with some assorted malware(trojans, etc.). At first, I could not open any applications whatsoever. Every time I would try it would ask me if I wanted to use internet explorer to open it.
I created a few rescue CD's(dr web, avira, avg, etc) and ran those. They cleaned up most of the problems.
Also, I installed AVG free edition and malware bytes. I ran both of those. That removed several more pieces of malware.
At that point, things were mostly good. But I noticed that almost all of the files on the computer had been marked as hidden(the desktop images were all faint, etc). So I went through and manually removed the "hidden" setting from all the PC files.
It seems like I am 99% good. However, when I open firefox browser and enter a google search, and click on a link in the search results, it sometimes redirects me to some other unwanted site. So I guess that there is still some malware lingering in the background that could not be found by AVG and malware bytes.
Any recommendations to fix this?