This is because some web pages contain malicious code (commonly known as rogue web pages). After you log in unintentionally, the registry keys of your computer will be modified. As long as you open the browser, this web page will pop up.

Solution: 1. Manually modifying the registry requires certain hands-on ability.

2. Use software to solve the problem. Commonly used ones include "Internet Assistant" or some anti-virus software.

Excerpt: Prevention of malicious code on web pages

(Rising Company)

1. To avoid being infected by malicious code on web pages, the first key is not to easily remove some code that you are not very familiar with. Don't enter the websites you know, especially those that look very beautiful and attractive, otherwise you will often fall into the trap of the web page code.

2. When running IE, click "Tools → Internet Options → Security → Internet Zone Security Level" and change the security level from "Medium" to "High".

3. Because this type of webpage is mainly ActiveX or Applet, JavaScript webpage files containing malicious code, disabling all ActiveX plug-ins and controls, Java scripts, etc. in the IE settings can greatly reduce the risk of being targeted. The probability of web pages being infected with malicious code. The specific solution is: click "Tools" → "Internet Options" in the IE window, select the "Security" tab in the pop-up dialog box, and then click the "Custom Level" button, the "Security Settings" dialog box will pop up, and Select "Disable" for all ActiveX plug-ins and controls and all options related to Java. However, doing so may make it impossible to browse some websites that normally use ActiveX during future web browsing.

4. For computer users using Windows 98, please open C:\WINDOWS\JAVA\Packages\CVLV1NBB.ZIP and delete "ActiveXComponent.class"; for computer users using Windows Me , please open C:\WINDOWS\JAVA\Packages\5NZVFPF1.ZIP and delete "ActiveXComponent.class" in it.

5. Be sure to install a network firewall on your computer and turn on the "real-time monitoring function" at all times.

6. Although the title and default connection homepage have been modified after the above work, if you accidentally enter this type of website one day in the future, you will be in trouble again. At this time, you can make some settings in the IE browser so that it can never enter such sites:

Open IE properties, click "Tools" → "Internet Options" → "Security" → "Restricted" Site", be sure to set the "Security Level" to "High", then click "Site", add the website address you do not want to go to in "Add Web Sites to the Zone", then click "Add", and then click "Apply" ” and “OK” to browse the web normally.

7. Set the relevant item values ??in the Registry Editor:

(1) Run the command regedit.exe to open the Registry Editor to enter the registry;

(2) Under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System, add a DWORD value item named DisableRegistryTools and change its value to "1" to disable the use of the registry editor command regedit.exe .

If you need to modify the registry for special reasons, you can use the following unlocking method:

Use Notepad to edit a .reg file with any name, the content of which is as follows:

REGEDIT4

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System

"DisableRegistryTools"=dword:00000000

Double-click to run recover.reg. Can.

Reference:/antivirus/net_virus/spiteful/yufang.htm