so, the story goes like this: i get home from college, and my family is freaking out because neither of the home computers are working. neither had any sort of antivirus or scanning programs installed (!!!) so i immediately installed both spybot and avast. after taking a closer look at the two, i'm getting frustrated. one is too bogged down with so many programs and such, and freezes every couple of minutes. this one, i've given up on, and needs to be wiped. the second, i have hope for -though i'm not sure why. it has the Spyware Guard/ fake Windows Security Center combo, and after a more careful look, i've also found some other little bugs, like gadcom.exe and sbnt.exe, and whatever is hijacking firefox (every time i click a link in google, it redirects me to a popup-very annoying while trying to fix this). i've sifted through several fixes other people have worked through in other forums, such as using OTScanIT (just didn't do anything when i used the fix they used) and ComboFix (windows won't even open the program). so i've finally decided to ask for help, as i realize i'm getting nowhere. i saw some helpful replies and decided to post here, but as i went to go through the 8-step process, i could only complete half. i put an antivirus on and let it do its thing. i used ccleaner. updated java. i can disable my protection, but after that, i'm stuck. i can't open the install files for Malwarebytes' Anti-Malware, HijackThis, or SuperAntiSpyware, so i can't attach those files. tried opening up windows in safe mode to see if it would help, but came up with the black screen with the words safe mode in the corners, but nothing else loaded. Help?