Anti-virus is one of the important programs that you have installed on your computer, if your computer is often used by others to include flashdisk or CD into your computer then there might be a virus on your computer is very large. Especially if your computer is also used to connect to the Internet so installing anti-virus on a computer is compulsory. There are many features that signify our computer got a virus. The following are among several signs that computer infected by viruses:
1. Your computer runs slower than usual.
2. Run Menu and Search hidden by the virus.
3. CTRL + ALT + DEL can not be used.
4. MSCONFIG and regedit are disabled
5. Original folders on your computer hidden and replaced with virus files.
6. Menu Tools -> Folder Options in Windows Explorer is missing.
7. Computers often stopped or not responding.
8. Computer suddenly restart or crash, and this happened a few minutes.
9. Computer applications are not running properly and often error.
10. Files with the icon appears but has a file folder type. Exe
11. Hard drive or disk drive can not be accessed.
12. Print activity does not work properly.
13. It often happens that strange error messages and do not usually.
14. Often seen the menu or dialog box is damaged.
15. There is duplication of names in a folder in the folder.
16. Computers always took the message from which the virus originated.

Do you feel that your computer has the signs above? if so you should look for anti-virus and install it on your computer. If you do not have the money to buy anti-virus, you can also use a free anti-virus which has sufficient capacity unreliable such us Avira antivir Personal

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