Quickly determine if a computer malfunction is a computer virus

Quickly judge whether a computer malfunction is a computer virus

For computer primary users, it is often a computer failure, and immediately suspect a computer virus, in fact, it is wrong, there are many kinds of computer failures. Hardware failures, software failures, link failures, and more. How to judge whether the computer is abnormal or not? Below I will combine the anti-virus experience of personal computer use and enterprise network maintenance to introduce the following aspects to show how to judge whether the virus is in the virus. I hope to help identify “True Toxic”.

Computer failure is not only due to infection, but various failures in the use of personal computers are caused by software and hardware failures of the computer itself. Caused by. Only by fully understanding the differences and connections between the two can we make a correct judgment and discover it when the real virus comes. Below I briefly outline the analysis of some common computer failure symptoms caused by viruses and software and hardware failures.

Frequent crashes: viruses open many files or take up a lot of memory; unstable (such as poor memory quality, poor hardware overclocking performance, etc.); running large-capacity software takes up a lot of memory and disk space; Some test software is used (there are many bugs); the hard disk space is not enough; the software that runs on the network often crashes because the network speed is too slow, the running program is too large, or the workstation hardware configuration is too low.

The system fails to start: the virus has modified the boot information of the hard disk or deleted some startup files. If the bootable virus boot file is damaged; the hard disk is damaged or the parameter settings are incorrect; the system file is accidentally deleted by mistake.

The file cannot be opened: the virus modified the file format; the virus modified the file link location. The file is damaged; the hard disk is damaged; the link location corresponding to the file shortcut has changed; the original software for editing the file is deleted; if it is displayed in the LAN, the file storage location changes in the server, and the workstation does not promptly update the server. Content (opened the resource manager for a long time).

Frequently reported insufficient memory: the virus illegally occupies a large amount of memory; opens a large amount of software; runs software that requires memory resources; the system configuration is incorrect; the memory is not enough (currently the basic memory requirement is 128M), etc. .

Prompt hard disk space is not enough: the virus copied a large number of virus files (this has encountered several cases, sometimes a good end of the near 10G hard disk installed a WIN98 or WINNT4.0 system said no space, a software installation I am prompted that the hard disk space is not enough). Each partition of the hard disk is too small; a large amount of large-capacity software is installed; all software is installed centrally in one partition; the hard disk itself is small; if it is in the LAN, the system administrator sets the workstation user for each user. Private disk & rdquo; use space restrictions, because the size of the entire network disk is viewed, in fact, the private disk has been used up.

When a device such as a floppy disk is not accessed, the read/write signal is detected: the virus is infected; the floppy disk is taken away and the file that was opened in the floppy disk is still opened.

There are a large number of unidentified files: virus copy files; may be temporary files generated in some software installations; or may be some software configuration information and running records.

Start the black screen: virus infection (the deepest memory is 4.26 in 1998, I paid a few thousand dollars for CIH, the first time I turned on the Windows screen that day, I crashed, the second time There is nothing in the boot); display failure; display card failure; motherboard failure; overclocking; CPU damage, etc.

Data loss: virus deleted files; hard disk sector is corrupted; File; if it is a file on the network, it may also be deleted by other users.