First, this situation infected with the virus is often manifested when opening IE, in the left box of the IE interface: I am opening a web page, but I haven't responded for half a day. View the process in the task manager, (enter the method, put the mouse on the taskbar, press the right click - Task Manager - Process) Take a look at how the CPU's usage is, if it is 100%, it can be affirmed, it is infected with viruses, At this time, you want to run other programs. This is to be checked which process greedily occupies the CPU resource. After found, it is best to record the name, then click the end, if you can't end, you have to start the stuff to delete the stuff, and go to the registry, (Method: Start - run, enter regedit) In the table dialog box, click Edit - Find, enter that program name, find it, right-click delete, then make several searches, often removing clean. There are a lot of viruses, when the anti-virus software is in powerless, the only way is to manually delete. Second, with the setup proxy server, some of the reasons, for some aspects, set the proxy server in the browser (Control Panel - Internet Options - Connection - LAN settings - for the LAN Using the proxy server), setting the proxy server is not Affect QQ network, because QQ is 4000 ports, and access to the Internet is 80 or 8080 ports. This is the reason why a lot of packages do not understand why QQ can be on, and the web page cannot be opened. The proxy server is generally not very stable, sometimes Hou Can, sometimes can't be on. If so, please cancel the agent. Third, the DNS server explains the so-called DNS, namely domain server (Domain Name Server), which converts domain names into computer-recognized IP addresses, such as Shenzhen Window www.sz.net.cn) The corresponding IP address is 219.133.46.54 The corresponding IP address of Shenzhen hotline www.szonline.net is 202.96.154.6. If the DNS server is wrong, the domain name cannot be interpreted, naturally cannot be online. If this is the case, sometimes it is a problem with the network service accesser, which can be called ISP; sometimes the router or network card problem, cannot be connected to the ISP DNS service. In this case, the router will be turned off again, or the router is reset. Or the NIC cannot automatically search for DNS server addresses, you can try to use the specified DNS server address. Perform in the properties of the network, (Control Panel - Network and Coaching - Local Connection - Right click Properties - TCP / IP Protocol - Properties - Use the following DNS server address). Different ISPs have different DNS addresses, such as telecommunications is commonly used 202.96.134.133 (main) 202.96.128.68 (standby). Updating the network card driver or replacing the NIC is also a thinking. IV. System file loss caused IE to start this phenomenon is quite common. Due to: 1. The instability of the system is frequent, often inexplicably restarted, illegal shutdown causes system file loss; 2. The conflict of hardware and software often is often manifested Some programs have been installed to cause a conflict of the NIC or conflict with IE. Since Intel launched a hyper-throwing CPU, there is a prominent problem that IE6 and ultra-threaded conflicts under XP SP1; 3, the virus invading causes damage or loss of system files.
