File Monster is a rogue antivirus application which will not only delete your data from your computer but also change the settings on your computer so that it can't be recovered. If you've ever had problems with rogue programs like this before then you know how frustrating and annoying it is... until it happens again. File Monster actually erases all files from your computer -- overwriting all the data in your system so it cannot be retrieved. The reason that files are still around even when you delete them with other traditional removal methods is because regular removal methods just tell the operating system not to recognize the file because it hasn't been completely erased yet. If you have a real good anti-virus program (or even an updated version) then the problem will go away for good.
File Monster is basically just a clone of Security Suite, which is one of the most popular rogue antivirus programs out there. The developers of this program did a poor job of making their program as effective as possible, and it has been known to cause a lot of problems. This might not bode well for other similar applications in the future. If you think that this application may be the same as some of the security suites you've used in the past, then think again. Most of the viruses used to bring down computers are actually far more advanced than what these two programs are.
It is even possible to completely erase files from your computer, and you will never know until you try this process yourself. How to completely erase files from your computer, is the question that everyone wants an answer to, especially if you are worried about leaving any sensitive data on your machine. When you have a good product like File Monster, it is all the more likely that you will find the answer to the question how to completely erase files from your computer in no time.