Do a quick web search for Free Online Virus Scan to bring up some other websites that offer same service.

You ultimately need to install good antivirus software right on your computer. The most important thing that such software does is real time scanning. This means that whenever you download email or enter a website it is scanning files and programs you may be downloading and checking to see that they are virus free. If a virus is detected software will warn you right away, before you open file and infect your computer.

There are options. If you type Free Anti Virus Software Downloads or Free Antivirus Utilities you'll bring up various results. Products like ClamAV, AntiVir Personal Edition, AVG Anti-Virus software, avast!, BitDefender are all free. As with any antivirus software utility you need to keep it updated regularly of all virus definitions so that it can do its job properly. The utility needs to be informed of all active viruses so that it knows how to protect your system.

A virus seeks out users with a slack awareness of their computer's security needs. Be informed. Do a virus scan today.

What it is really interested in is your surfing history. It wants to collate all information that will help advertising companies better target you as a consumer. And so, it collects information on what you like to read online, which websites you browse to and, most valuable of all, where you go shopping on Internet and what you buy.

But once in your system Spyware can be very annoying. At its worst it can severely impair your computer's ability to function, using up to 50% of its memory. It doesn't do it on purpose, it's not vicious like a virus, but it is destructive whether it wants to be or not. It can block your Internet access and just generally cause your computer to be so slow that you cannot use it without banging your head on your keyboard. Or, unless you format your hard drive.

There are lots of ways to protect your computer from this menace. Spyware removal programs help you track Spyware and purge your system of software. Try an Internet search for Free Spyware Removal or Free Spyware Removal Program. This will bring up various results including Lavasoft's Ad-Aware program, which is most popular. Some websites will also offer you a Free Spyware Removal or Adware Removal online.