I have a huge problem. My computer was attacked by malware a few days ago. I immediately ran a full scan with my Antivirus (AVG Internet Security Business Edition 2012). It found 3 threats and I deleted them. Now, I've noticed that even though I have the pop up blocker turned on, pop up windows open steadily. I'm currently using Google Chrome and I even installed the AdBlocker extension, which makes it a little bit better. Now, every time I open a new website, AVG alerts me that it found a threat and that it has been successfully removed. Problem is, when I check the AVG log and the Virus Vault, it is all empty. A repeated full scan don't show any results. Today I also noticed, that I can't open my Windows Defender. Whenever I try to turn it on, I get an error:
"Windows Defender encountered an error: 0x80070424. The specified service does not exist as an installed service." Then I tried to access the Security Center and when I open it, it tells me Security Center is turned off. Now, when I try to turn it on, it tells me: "The Security Service can't be started." Also, Windows Firewall service is not running either. When I try to update the firewall settings, it tells me: "Windows Firewall was unable to make the requested updates". Trying to turn Windows Firewall on, also fails. Error message "Due to an unidentified problem, Windows cannot display Windows Firewall settings." AND: 2 Windows Security updates failed as well. Security Update for Windows Vista (KB2633171) and Security Update for Windows Vista (KB2507618).
I'm really really desperate and don't know what to do. I've looked up several forums, but can't really find answers. I'm not a computer genius,... so I really need help! I really would appreciate it, if somebody can help me! I attacked several attachments.