In order to keep your PC updated and good in performance a regular PC check is inevitable to perform with the help of windows in built system tools as well as with other computer cleaner program like an antivirus program or any anti Malware software. External infection to a PC is one of the most dangerous and biggest issues windows operating Systems have been facing for last 2 decades. On an average 80% of PC issues like Slow PC, Shutting down, freezing, BSOD etc. are just to external malicious entries that come through the Internet.
We all know there are thousands of ant viruses, anti Malware, Registry Booster or registry cleaner programs are available in the online market today. Despite of all these protective software only few of them are really capable enough to resist these attacks from external sources.
There are many giant and small organizations are in the market today and I do not have much doubt that few of them are really working great, researching continuously and struggling with the infections reach daily in the internet. Still many times a virus or malicious entry intrudes in your computer one day or other.
I feel we just need to understand the work pattern or mechanism of these bad routines/procedures (a Virus is a computer program or procedure that has written by someone and which can damage any computer functionality and Virus is the biggest reason behind a Slow PC or ay PC related issues) so that we really can get an idea that why in spite of so many efforts and researches from various computer cleaner or antivirus software developers these unwanted entries come into existence and make us feel their presence regularly.
Let us take example of a Virus program that may also harm your PC by any means. A virus is designed always to perform a specific task. Like if a virus called ABC.exe (an exe file is an executable file that runs once it gets clicked) is written to destroy your control panel in windows PC, it usually enters into your PC and either disable the entry related to control panel from windows registry or will remove the key from the registry completely. When the next time you try opening your control panel and windows will call an internal function (Windows uses its in built system file DLL to call almost all internal functions) to invoke control panel. It won’t find the similar key in the called function or in registry and it will display some error message it is disabled or cannot open or blah blah….
Here an interesting thing needs to be noted, an antivirus program can certainly kill a virus or any other unwanted entry, however to recognize a program if it is worth to be deleted or not, It is a hurricane task always. This means to white-list a program by a program is the really change for any antivirus or anti Malware or Computer cleaner. Also a malicious program usually comes and attacks with different patterns and names and work mechanisms. It maybe that a virus can disable your control panel and another version of it may also disable GP (GUP or Group user policy is a place from where you can restrict or allow number of rights to any user is using/sharing the same PC).
Sometime there are few viruses they disable the entire functionality of a PC and make a PC slow or corrupted so that you even cannot navigate anything at all. I will share a piece of example, I have come across a situation where, device manger was disabled, when I tried to open registry editor from run windows it was disabled also, I managed somehow to open run command prompt but when it opened registry editor was disabled from Group user policy, in turn Group Policy was also disabled. Tired with all these tools I wanted to disable all the running processes in explorer but Task manager was also disabled and so on. There was nothing left to invoke any process only the virus process and alone windows explorer was working. I had to format my windows in the end.
So this all means it is not only very difficult task to protect a computer system completely rather almost impossible to stop all the infections in a PC. Yes there is an alternate to be safer that not to use any such medium wherever it is likely to be an infection. Or browse safe and scan any external media (CD/DVD PAN or flash drive or any external hard drive) before using it in your own system.
