I am a big advocate of free PC scan and repair software. I can not deny the fact that the paid versions of scan programs are better. But I am of the opinion that usually the average used PC is not infected enough that it needs a premium version of the scan.
These programs offer so much and that too without spending a dollar that (in my opinion) the premium or the paid scanning programs are going to go obsolete very soon. Following are the potential benefits and advantages that a free PC scan and diagnosis program can offer. First of all, a free PC scan and diagnosis program can keep you safe from hackers, intruders and other internet threats. Have you ever heard of Trojan horses, active Trojan horses or remote access Trojan horses? Trojan horses are malware programs that are usually disguised as utility programs, games or other useful software.You can download from the internet, or can open them from the email attachments or they can enter your PC with out your permission simply if you are connected to the internet. Once you open these programs they can steal your passwords or they can steal all the contacts from your email address book and can send annoying, irritating, threatening or deceiving emails to all of your contacts. Other than Trojan horses there are active Trojan horses or remote Trojan horses. Active Trojan horses can simply pass the control of your PC to the hacker(s). A free scan program can protect you from such happenings.
Secondly, a free PC scan and diagnosis can enhance the performance and speed of your computer. This is a great service and this objective is achieved by the detection of the malicious worms. The worms are mal ware programs that remain hidden in your computer system. The worms keep on replicating and executing themselves. They eat up all the available active memory and also disturb the hard disks, which are meant for remote storage. Since they are hidden the user can not detect them. They make the computer extremely slow and it may give memory exhaustion messages even if you perform a teeny tiny operation. Without a PC scan program the presence of the worm(s) is known only when it halts the computer and the Operating System crashes. And also a free PC scan and diagnosis can protect you from viruses. The viruses are self replicating programs which do not ask for your permission to destroy your information file, cause erratic system behavior and display obnoxious and/or annoying messages. Good PC scan software protects you from viruses.The Spyzooka is one of the best Free PC Scan and that I have ever installed. The earlier version was somewhat a beginner’s version and did not provide advanced security. But after I have downloaded the latest version I have noticed great improvements that many renowned PC scan programs do not offer.

The free PC scan and the problems repair suggestions are a must these days to ensure the health of your PC. We connect to internet everyday and then our USBs and portable hard drives are often connected to multiple PCs. Both of these factors are an open invitation to viruses, worms and Trojan horses which can badly affect the health of your computer.
These programs do not cost a penny and protect your computer from so many malicious programs and malwares. Other than that they may also display obnoxious and annoying messages on you computer screen and that too with out intimation. The free PC scan and repair programs also keep a sharp eye on your installed anti virus program and other spyware. Not only that it assists them all the time but also it ensures that the latest version of both the programs is installed on the PC. When ever any of these programs go out of date the free PC scan and repair program will either update them automatically or will generate a message for your permission. It depends on choice and preference whether you want to go for automatic update or a manual one.
An example of this scenario is the Trojan horses or the active (remote access) Trojan horses that can be sent in the form of email attachments disguised as games or useful utility programs. These Trojan horses if once opened can pass the control of your computer system to the hackers. They can take sensitive information from your PC for malicious purposes or for a handsome amount of ransom. A word of caution: always make sure that you download a free PC scan and diagnosis program from a reliable website. Some Trojan horses are disguised as scan programs or even anti viruses.
You can suspect the presence of a worm if your computer system has become too slow or repeatedly giving memory exhaustion messages. And finally it will make a check for Trojan horses. The Trojan horses are programs that are disguised as useful programs. They can easily give the hackers can access to your PC. The free PC ‘scan and repair’ software can save you and your computer system from various kinds of internet threats. It will check for the following to judge if you and your computer are safe from the internet threats. First of all it will check if your computer is safe from the hackers. Then it will check if your Operating System is completely safe. And finally It will perform an anti virus product update check each time you run it. There are many such soft wares available online. I have downloaded one. I am using it for 3 months now and I am always connected to internet. Thanks to the very efficiently developed software, my PC is running just fine.A Free PC Scan and diagnosis that I recently tried is Spyzooka. It has proved to be a really good one. I am literally always connected to the internet and so far I am totally secure and protected.