Spyware is a sad but true fact of the internet these days.
Many websites you might frequent can copy files to your PC, which can range from being mostly harmless to causing considerable damage to your operating system.
Protecting your PC from software damage is an ongoing process that requires frequent scans of your PC with one of many software tools available today.
You must remember that like viruses, new types of Spyware are being developed all the time and without keeping the removal software on your PC up to date, you risk an infection that can seriously harm your PC to the point of making it unusable.
Fortunately, the software market for PC Spyware Protection offers several good tools to help you locate and remove Spyware before it can do serious harm.
Some antivirus programs include Spyware removal among their features.
While this is a great addition and convenience, you should not hang your hopes on one "all in one" solution for protecting your PC.
Ideally, a combination of two or more Spyware removal tools is a smarter way to protect your PC.
Using that method, you have a better chance that if one of your removal tools doesn't catch a new piece of malicious software, the other will.
The race to protect against Spyware, like computer viruses, is ongoing.
The only real way you can hope to protect your PC is to acquire one (preferably at least two) tools, periodically run scans and frequently update the definition files for them.