1. Preventing computer viruses is the key to preventing computer viruses.
2. A common computer virus prevention measures include: 1. Do not use pirated or unknown software, especially pirated anti-virus software.
3. 2. Write protect all system floppy disks.
4. 3. Install truly effective anti-virus software and upgrade it frequently.
5. 4. The newly purchased computer should be checked for virus before use to avoid virus.
6. 5. Prepare a clean system boot disk, copy the commonly used tool software to the disk, and then save it properly.
7. After that, once the system is invaded by a virus, we can use this disk to boot the system, check and kill viruses.
8. 6. The external programs should be checked by virus detection software. The executable files that have not been checked cannot be copied into the hard disk, nor can they be used.
9. 7. Try not to use floppy disks to start the computer.
10. 8. Back up the hard disk boot sector and the main boot sector, and often back up important data.
11. 2. Early detection of computer viruses is the key to effectively control the harm of viruses.
12. There are two main ways to check whether a computer has a virus: one is to use anti-virus software to detect, the other is to observe the abnormal phenomenon of the computer.
13. The following phenomena can be used as a reference for virus detection: 1. Some meaningless display screens or abnormal prompt messages appear on the screen.
14. 2. The screen scrolls abnormally and has nothing to do with line synchronization.
15. 3. The computer system crashes and restarts abnormally.
16. 4. The system does not recognize the hard disk or the hard disk cannot boot the system.
17. 5. The machine horn automatically sounds.
18. 6. The speed of the system boot or program load is significantly slow, or the user is required to enter a password abnormally.
19. 7. The file or data is lost without reason, or the file length automatically changes.
20. 8. The disk has a bad cluster or the available space becomes smaller, or the disk device is not recognized.
21. 9. When editing text files, save them automatically frequently.
22. III. The computer virus should be removed immediately when it is found to minimize the harm of the virus.
23. Solution after computer virus is found: 1. Back up important data files before virus removal.
24. 2. Start the latest anti-virus software to scan and clean the entire computer system to restore the system or files to normal.
25. 3. After a virus is found, we should generally use anti-virus software to remove the virus in the file. If the virus in the executable file cannot be removed, it should generally be deleted, and then the corresponding application should be reinstalled.
26. 4. Some viruses cannot be completely removed under Windows98. At this time, we should boot the system with the clean system boot disk prepared in advance, and then run the relevant anti-virus software under DOS to remove them.
27. Common antivirus software include Rising, Kingsoft, KV3000, KILL, etc.
28. Four summary: How to prevent computer viruses can be started from three aspects: (1) Do a good job in preventing computer viruses; (2) Timely check and find computer viruses; (3) The computer virus found should be cleared immediately.
