Laptops, like people, are not living organisms, but they are also infected with viruses. There are various problems, some of which are caused by lack of awareness of their own defense, and some are malicious attacks by hackers. Then find out how to deal with poisoning your own laptop

1、The user who is surfing the Internet immediately disconnects after finding an exception

       If you find that IE often asked if you run some ACTIVEX control or generate inexplicably file, ask what the script debugging. Must be vigilant, your Dell notebook may have been caught up. There are two situations in which a typical Internet connection is compromised:

       (1)When browsing some web pages with malicious code, the browser's default home page or title is modified. This is light; there is a chance to format the hard disk or make your windows keep opening the window until you run out of resources. This situation is much worse. You may have lost some or all of your unsaved data already stored on your Dell laptop hard drive.

       (2)A potential Trojan attack by a hacker, or a worm virus attack. Let your notebook constantly send your privacy to the outside world, or use your name and email address to send spam. Spread the virus further; there is a hacker's manual intrusion, snooping on your privacy or deleting and destroying your files.

Approach: Immediately disconnect, so that can reduce their own losses, but also to prevent the virus spread to more online computers. Please do not immediately shut down or reboot the system.

2、after poisoning, should immediately backup and transfer documents and mail

       It is necessary for Dell laptops to run anti-virus software after poisoning. However, in order to prevent the anti-virus software from killing or deleting documents and important mail that you have not processed yet. You should first transfer them to other backup storage media. Some long filename files and unprocessed emails are required to be backed up under Windows. So the first point here I suggest you do not exit the notebook windows, because the virus once the attack may not be able to enter the windows.

       Regardless of whether these files are poisoned, you should back up and mark them as pending. Because some viruses are designed specifically for a certain anti-virus software, one operation will destroy other files, so the first backup is a precautionary measure. After you've cleared the virus in Dell's laptop hard drive, it's time to slowly analyze and process the extra backup files.

, need to run under the windows to kill the CIH software

       If it is found in the notebook CIH virus, it should be noted that the press and manual recommendations can not be completely in accordance with the usual measures to shut down, cold boot with the system disk to guide and then kill the virus, should also be run in a poisoned environment to kill the CIH Software.

       In doing so, the anti-virus software may report that certain files cannot be cleaned up by read/write protection, but the actual purpose of virus operation is not to completely clear the virus, but to minimize the damage to the CIH when it is turned on next time. Reboot the motherboard to destroy the BIOS hardware, then it will be a black screen, so that your next antivirus can not be carried out.

4、need a clean DOS boot disk and DOS antivirus software

       Until now, you should follow the standard manual of many anti-virus software to do it step by step, that is, after the shutdown, cold start your Dell laptop, boot with a clean DOS boot disk is not less; also due to poisoning may Windows has been destroyed some of the key files, will frequently operate illegally, anti-virus software under windows may not be able to run.

       So please prepare a anti-virus software under DOS just in case.

       Even if you can run anti-virus software under Windows, please use two or more tools to cross-clean. In most cases, your Dell laptop may have to be reinstalled because the virus will destroy some of the files to make the system slow or frequent illegal operations. For example, even if the CIH was killed, Microsoft's OUTLOOK mail program was slow to respond.

       It is recommended not to prejudice certain anti-virus software. Due to the different focus and the anti-virus engine used during development, various anti-virus software has its own strengths and weaknesses, and the cross-use effect is ideal.

5、if there is GHOST and partition table, boot area backup, use it to restore the most insurance

       If your laptop is used as a GHOST backup for Windows, use it to mirror once, and the operating system is the most secure. In this way, even potential unkilled Trojan horse programs are cleaned up by the way.

6、After you restore the Dell laptop system again, change your network related password

       Including login user name, password, email password and QQ, etc. to prevent hackers from knowing your password during the last intrusion. In addition, because many outbreaks of worms will send your information randomly outside, proper changes are necessary.

       The above content is about some emergency measures that Dell laptops are poisoned. If your laptop cannot be booted after poisoning, you can restore the operating system or understand the virus location in the PE system and crush it.

The above anti-virus method is also suitable for other brands of notebooks, Lenovo, Acer, HP and other popular notebook brands.