How do you know if your computer has a virus, worm, Trojan horse infections, spyware, malware, crimeware, or any other known type of infection? PC world is obviously different, so it’s everyone to keep an eye on the causes known and documented.

Although not necessarily all of the infection following PC if you have more than one of them happens to be at the same time, the probability is high, and you can look over.

- The first performance is slow, what happens if the computer was new in comparison. Unfortunately, there is no single cause, but it is unlikely that any of the following or a combination of viruses, worms, rootkits, spyware, adware, (remote access to a PC without the user) .

- According to PC takes longer to boot. This is done anyway, if the load is more and more programs, especially if your computer is old and you try to run the latest applications, resource-hungry, but it is malware or other infection was recorded Start sequence.

- Third Stop and restart. This can be very frustrating if you are the original work, especially when the auto-save off or rare. A virus is the most likely cause of this problem.

- The PC freezes and can not do anything, the mouse does not move and can not see the hourglass or the equivalent, but is frozen and even the Windows Task Manager does not open. This may be a hardware problem, like bad RAM, but can be caused by an infection.

- Website opens May evil. Click OK when you type a URL or link, and also, perhaps one that offers an order through an affiliate link (someone trying to buy a product that is made by a commission on the sale) or for worse, leads to a site for adult or pornographic. If this happens, there is a strong possibility that spyware is at work here.

- The parameters of the browser’s home or be changed. This could be a software you have installed (installation is considered an unethical practice to do so), but can also be a sign that you have spyware lurking. At best, spyware is software that makes your eyes for a quote for a product that presents the history of the browser you purchase an interest in

- Pop-up window appears when you surf the net. These can, if you saw the offer to purchase some decide not to go, having to close the page. This is not an infection is known as the OTO – buy once, an estimate for a product at a lower price, for example. A pop-up can also be a way to earn income for their owners every time a range of products is paid for someone else. However, at the request of a pop-up window appears when the closure is loaded or loading a page, but also be an infection.

- warnings pop up telling you that you have an infection. Do NOT click on the ads, may be common to stealing Trojan, virus or attempted personal information from your PC.

- toolbars are displayed and can not be installed. They are often installed with some software he wanted in his system, and not wake up when during the installation and disable them, which are loaded into the default installation. Similarly, however, the toolbars can be installed malicious malware, then take a look and see.

- E-mail sent or not, who did not. It is embarrassing when a friend tells you that you have been a strange message or an e-mail containing a virus? There are worms and viruses that pass through your address book and send a copy of itself to all contacts! Or, if your friends tell you that you have contributed to the wall, a social network that has not made a review of malware.

There are other signs, such as the disappearance of money from your bank account, phone bills or higher with iTunes, for example. Worth to balance or frequent use.

To prevent and cure, if necessary, none of this is necessary to protect your equipment and protect themselves. You built-in software security, operating system, if well enough to stay together, a security suite or a combination of separate programs to protect your system and calculates flawless.