Hello there. Problems have been increasing in the last few days. It started with my web search results being redirected to websites such as MyLocalHero, regardless of what browser or search engine I use. Now: My PC is running really slow while in Normal Mode. The Just-In-Time feature has been popping up an awful lot lately. Everytime I open Google, I get the following message: "www.google.com:443 uses an invalid security certificate. The certificate is not trusted because it is self-signed." (Says something about it having expired.) To make matters worse, I can't open Task Manager at all. I know it's not disabled; I checked the registry. In a, presumably, foolish move that could've worsened the situation, I tried to reinstall it by logging in as Administrator in Safe Mode, but the related dll file seems to be corrupted; can't be too sure, though. I've run Spybot - S&D— it detected 44 problems, but I don't want to take action until I get more information—, Malwarebytes', and ran Disk Cleanup; problem remains there. While running the HijackThis scan, I got the following message: "For some reason your system denied write access to Hosts file. If any hijacked domains are in this file, HijackThis may NOT be able to fix this. "If that happens, you need to edit the file yourself. To do this, click Start, Run and type: notepad C:\WINDOWS\System32\drivers\etc\hosts and press Enter. Find the line(s) HijackThis reports and delete them. Save the file as 'hosts.' (with quotes), and reboot." I was hoping someone could help me out by reading my HijackThis log and giving me instructions on what actions to take. I really don't know what else to do. Thanks in advance.