I previously had some serious Malware that I fixed using HiJack This with the help of a HiJack This Expert from GtoG.
At the time, my IE would automatically open up the first time when I started (or restarted) my computer and go to a jacked website telling me to purchase some adware stuff. I couldn't use my Norton Antivirus (it would not open up, even after trying to change its name) and Spybot, Adaware, etc. didn't open up. After changing the Spybot and Adaware to different names, I was then able to scan. Still I had problems so I used HOTMAIL to email GtoG and an expert helped me out.
After everything was clean, I still had a few problems:
1. IE would still open up the first time I start (or restart) the computer, but it would go to a site I specified (google, yahoo, etc.). But, I realized I could not get onto Hotmail and my brother could not get onto his webmail for his university.
Gmail was okay, my other email was okay.
2. Norton Antivirus still could not open up.
3. Windows Update does not work. The auto update does not work, it says I have an error. The site says I couldn't download it. However, yesterday and today has not even allowed me to get onto that site.
4. I noticed today that I could not use Windows Media Player. For some reason, all of my Windows type applications seem to be failing me.