Computer Viruses

Hey Guys!!!
Im back again and again and again and again!!LOL
Our topic for today is Computer Viruses!
What did you think if you hear word Virus or Viruses
Viruses is a thing that can kill you but our topic is in computer not human being soo,Computer Viruses can kill your computer or erase your important files,documents,and games ^-^!
-
-
I dont have experience in computer viruses because my computer have no virus but my friend have,you can get virus from downloading it on a not popular sites or by downloading a hack for the games.
Virus caused a very big problem in your life!,When your computer have virus I know exactly what your feeling is worried or panic right??of course your gonna cry if your computer viruses they are many kinds of computer viruses like:

Boot viruses
Since nobody uses floppy disks anymore, these types of computer virus are left to infect only the master boot records of the hard disk. The boot record program loads the operating system in the memory at startup. These viruses replace the boot record and move it to a different part of the hard disk, or simply overwrite it. As you can imagine, once you start your operating system, it loads into memory, along with the virus. Once the virus is in the memory, it is free to do whatever it was programmed to do. To avoid loading the boot record viruses into memory, you must boot your operating system from another source (another hard drive or a bootable CD/DVD).
Program viruses
These types of computer virus will infect only executable files (with extensions like .BIN, .COM, .EXE, .OVL, .DRV, and .SYS). Once executed, these programs load into memory, along with the virus contained within them. Once in the memory, the scenario repeats – the virus is free to act and infect other files or simply deliver its payload. These viruses are friendlier than boot viruses and can be removed a lot easier.
Multipartite viruses
These computer viruses are hybrids, derived from boot viruses and program viruses. They infect executable files, just like the program viruses but, once the executable is executed, it infects the master boot records. The scenario is similar to the boot virus’s one: once you boot your operating system, the virus is loaded into the memory, from where it is free to infect other programs and replicate itself, ultimately delivering the payload.
Stealth viruses
These viruses are specialized in avoiding detection and will use a number of techniques to do so. Most of them simply redirect the hard disk head, forcing it to read another memory sector instead of their own. Some of them also alter the reading of the file size shown when listing the directory. These types of computer virus are very hard to find by humans, but antivirus software is specially designed to track them down and erase them.
Polymorphic viruses
The polymorphic viruses will always change their source code from one infection to another. Each infection is different, and this makes detection very hard. However, detection is still possible, depending on the antivirus.
Macro viruses
This virus is relatively new and it infects macros within a template or document. When you open a word processing document, it activates the virus. The virus infects the Normal.dot template, which is a general file used by all the documents. So, whenever you open an uninfected document, by referring to the Normal.dot file, it gets infected as well. This infection can only spread if infected documents are opened on another machine.
Active X viruses
Most people do not know how to configure ActiveX and Java controls, unconsciously leaving a security hole. Applets are then allowed to run freely on the machine, delivering all ActiveX viruses. By simply turning off some ActiveX and Java controls in the browser, a user can efficiently protect their PC from this type of computer virus.
 There you go This is the kind of computer viruses

Lets go on how to fixed a computer viruses
there are 20 steps to fixed a computer viruses
1.Run your virus-scanner, but beware, many modern viruses can circumvent (or hide from) anti-virus programs. Quarantine anything suspicious. 
2.Make sure you are using a reputable antivirus. Some good free ones are Avira AntiVir, AVG, and avast!
3.In the event no viruses were found and your virus issue is still present, follow these next steps.
4.Have a scanner, such as Malwarebytes Anti-Malware, Spybot Search and Destroy and Superantispyware.
5.Depending on the virus you might not be able to install any software or do updates. If this is the case skip to step 7, otherwise continue to step 6. 
6.Reboot into “Safe Mode”. Restart your computer and press F8 before Windows loads. Press F8 several times if you need to. Select “Safe Mode” from the resulting menu. Safe Mode disables much of the start-up routine. 
7.Reboot into "Safe Mode with Networking". Restart your computer and press F8 before Windows loads. Press F8 several times if you need to. Select “Safe Mode with Networking” from the resulting menu. Safe Mode with Networking disables much of the start-up routine but allows the use of basic web browsing, allowing you to access to download and update Malwarebytes. Make sure you select full scan option instead of quick scan. 
8.Once in safe mode with networking download Malwarebytes from their website, install it and update it.
9.Run your malware scanners - Run both the scanners sequentially, deleting any references found. CAUTION: When deleting infected files make sure you are not removing important files you require (e.g. Microsoft Outlook uses “.pst files” for your email, and often some emails within this “.pst file” are infected). Virus scanners will delete your complete “.pst file” so this means your entire email inbox, not just a single email. 
10.Have a boot disk. In these cases some anti-virus manufacturers like Norton, AVG, Kaspersky ,GData and panda provide “Boot Discs”. These boot discs can generally be downloaded from their websites with all the latest updates included, so if possible download one of these boot discs and burn it to CD. 
11.Reboot with disks. Once you have your disc, reboot your computer and boot from CD. Many different branded computers have slightly different ways of booting from disc in most cases Esc, F9, F10 or F11 are used on start-up to access the menu option allowing you to select to boot from your CD/DVD drive (it is suggested researching on the internet your device and which hotkey to use).
12.Reboot with disks. Once you have your disc, reboot your computer and boot from CD. Many different branded computers have slightly different ways of booting from disc in most cases Esc, F9, F10 or F11 are used on start-up to access the menu option allowing you to select to boot from your CD/DVD drive (it is suggested researching on the internet your device and which hotkey to use).
13.Scan by boot disk. When you have booted to disc run the virus scan from the CD. Remove and references found but be cautious in the files you delete as some files might be flagged that are a part of your email inbox, as stated earlier.
14.Boot into your hard drive. Once these viruses are removed via using the boot disc it is recommended to begin from step 7 again to continue further scans.
15.Consider asking a professional's help. If you are at this point it is recommended seeking advice from a professional.
16.Consider removing HDD. If Norton, AVG, or Kaspersky Boot Disc do not work, remove your HDD/SSD from your computer.
17.Plug it into another PC that already has Malwarebytes installed, do not browse the HDD when you plug it in. Right Click and select "scan with Malwarebytes". (This is assuming the HDD auto-detects).
18.Learn how to plug HDD into another computer. If you have got to the stage where you have removed your HDD but are not sure how to plug it in the most simple and safe way, purchase a 2.5” or 3.5” external HDD enclosure and temporarily placing your drive in there so you can perform scans on the drive.
19.When scans are complete and viruses are removed, back up your data. Once you have completed your back up, place the drive back into your computer, start it up and see if the virus has been
20.Consider that HDD might be damaged. If the HDD step does not work and you are 100% confident you have done everything correctly and you cannot access the HDD then you have HDD issues and you will need to seek profession advise on recovering lost data or even getting them to test things out for themselves.

 Thats it for today goodbye and dont forget to comment ^-^