Do not run any tools in the style of OTL, DDS, HJT, CF, FRST, aswMBR, etc.
Those who lurks the White Hat Help for a while know what I'm talking about. In the malware removal tool, there is tools that I call "reporting and logging" tools, which are stand-alone executables that when run, output a log with specific information in it that can be used to create what we call "fix-lists" in order to clean malicious entries rapidly from an infected system. However, you have to know that these tools CAN NOT be used by everyone. This is not a joke and I'm dead serious on that : these tools shouldn't be used if you don't know how to use them, nor if they aren't used under the supervision of a professional. You can go on every malware removal forums and the same thing will be written. There's a simple reason for this, these tools are so powerful that if used in an incorrect way, they can render a whole system unbootable and not recoverable. You have to be trained in order to use these tools or even supervise others in using them. Unless you are graduated from a recognized malware school (and even there, well, except if you are an ex-MRT member obviously), you shouldn't use these tools, nor should follow the instruction of people that recommends them. Trust me, this is for your own safety and the well-being of your system. There's other ways to deal with malware other than these tools. Will they are way more efficient, they are way harder to use and control. So please, if you ever see someone recommending you one of these tools : OTL, DDS, HJT, ComboFix, aswMBR, FRST, etc., when they think that they can interpret the logs, ignore his post and wait for another member (preferably a trusted helper) to come assist you.
Ignore users that post dumb recommendations/procedures (IE: format and reinstall)
While some malware/virus cannot be removed and indeed requires a total format on the hard drive, repartition of it and reinstallation of Windows in order to get rid of it (like malware from the Sality or Ramnit family), this isn't always the case. Most malware can be dealt with without formatting, nor reinstalling Windows. Therefore, before considering that option (except if you really don't care, you know how to do it and you don't have time to loose), try to get actual assistance to remove the malware/virus you are infected with. Most malware infections in the White Hat Help section are ... "easy" (do not requires a full format and reinstallation) to remove. Infections such as Browser Hijackers (search engine redirections), Adwares (you see ads on your browser, system, websites, etc.), Junkware and PUPs (you have tons of useless programs popping up and you didn't install them, etc.). In most of these case, you do not need to reinstall Windows in order to get rid of these, you just have to follow the right instructions and run the right tools to remove them. Simple as that if I may say. So if you ever see someone recommending you to format your hard drive and to reinstall Windows to get rid of the malware, he's most likely a troll, simply ignore him. Someone who's really serious about this will give you reasons, explanations and proofs (like I do when someone is infected with a Sality or Ramnit malware) when telling you to do a such thing. However, be ready to accept this solution as the only one there is, depending on what kind of infection you're dealing with.