What are the symptoms of the virus in the computer? What should I do if I have a virus in my computer?
When the virus in our computer, the virus will not tell you that it has been poisoned, but we can see from some anomalies. So what are the symptoms of the virus in the computer? What should I do if I have a virus in my computer ? The following decoration home decoration network Xiaobian will bring you a solution to the virus in the computer, I hope everyone can help after reading.
What are the symptoms of the virus in the computer ?
1, the file or folder disappears without cause:
When you find that some files or folders on your computer disappear for no reason, you can be sure that the computer has a virus. Some computer viruses hide files or folders, then forge hidden files or folders and generate executable files. When users click on such camouflage files with virus programs, they will directly cause the virus to run, resulting in users. The disclosure of information.
2, running the application does not respond:
Some computer viruses use image hijacking technology to change the commonly used application running path to the virus running directory, so when we try to run a normal program, it actually runs a virus program, causing the computer virus to start.
3. The computer startup item contains suspicious startup items:
Check the "System Configuration Implementation Program" window. If you find an unknown executable directory, you can be sure that your computer is already virus. Of course, more often the virus program uses the modified registry key to add a self-starting item.
4, the computer is running very slowly:
When the computer is running slowly, it may be caused by a virus in the computer. The computer with the virus will continue to run in the background through the virus program, and most viruses will occupy too much CPU and memory, and the Trojan virus will use the network to spread the user's private information.
5, anti-virus software failure:
Anti-virus software is used to protect the system. Therefore, when the anti-virus software cannot run normally for anti-virus operation, you can be sure that the computer is infected with viruses. At this time, we need to use the network to implement online anti-virus operations.
6, the computer is running abnormally:
Viruses can take up too much system performance, causing file corruption and even severely affecting system stability. When the computer has a blue screen with no reason, the running program is abnormal, the running speed is too slow, and there are a lot of suspicious background running programs, it is necessary to pay attention, and the computer may be infected with viruses.
What should I do if I have a virus in my computer?
1. Disconnect from the network: The current Trojan is mainly for the purpose of stealing information from the computer. Therefore, after discovering poisoning, the first thing to do is to disconnect the network. The easiest way to disconnect the network is to dial the network cable or set "Local Area Connection" to "Disabled".
2, copy important data: If there is important data stored in the PC, it should be backed up to the mobile hard disk or U disk immediately after disconnecting the network. Although these files may have viruses, these can be post-processed to avoid being removed by anti-virus software.
3, the whole scan anti-virus: If your anti-virus software can start at this time, you can choose to scan the whole file, select the "virus removal" or "isolation" for the file containing the virus, instead of directly deleting the file, so You can avoid important files being deleted. If your anti-virus software can't be opened at this time, you can consider taking the hard drive off and hanging it on another computer to kill the virus.
4, modify the important password: even after the full anti-virus, can not fully guarantee the data is safe, you must reset some important passwords, such as online banking, QQ and other account passwords. After the above steps, you can minimize the damage caused by the virus. Network security (home network) must be always careful. Of course, the virus is the best.
5, such as anti-virus software is not the latest version or killing invalid, only reinstall the system. Installing the system is a time-consuming and energy-intensive task. When installing the system, you must format the C drive. After installing the system, install the latest version of the virus software and put all the patches on the system. Remember: Never open untrusted files until you have done this. After installing the anti-virus software, first check and kill the entire computer, and then check and kill the backup file to confirm that it is non-toxic and then copy it to the computer.
The above is what is the virus in the computer brought to you by Xiaobian? What should I do if I have a virus in my computer? I believe that everyone has a basic understanding of how to run a virus in the computer after reading this article. If you want to know more about decoration consultation, please click to enter the decoration knowledge channel.
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