Before you do anything I suggest in this site
BACK UP YOUR DATA
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Lately there has been a rash of what is termed "Fake Alert" spyware taking over many user’s computers. Typically, this malware will flash a message that says essentially "Your computer is infected with malware! This is a dire situation and you must click here to clean out your computer." The hope is that you will buy their product, over and over in an attempt to clean out their computer. If you do fall for it you will download even more spyware.
The big problem with this scenario is that once it takes you computer over, you cannot run anything to clean it out because it prevents you from doing so. This seems to leave you only the option of buying the junk to get rid of it.
Being a former Boy Scout myself, my motto is still "BE PREPARED", so I want to show you a way to get ready in case something similar to this happens to your computer.
There are many varieties of this type of malware, some examples are below:
Remember, an ounce of prevention is worth a pound of cure.
Do this right now, and you might save your self the cost of a trip to the repair shop later.