I use the computer to enter the QQ space. Only QQ can say I can't get in. What's going on here? Everything else can be entered!

1. Software 1. Virus Damage Since the appearance of computers, computer viruses have appeared constantly. When the network becomes the information artery of today's society, the spread of viruses is more convenient, so it also interferes with and destroys our normal work from time to time. A typical example is the "shock wave" virus that caused serious damage to computers around the world some time ago. When the outbreak occurs, you will be prompted that the system will start automatically after 60 seconds. In fact, as early as the DOS era, many viruses can automatically restart your computer. Whether it is virus damage or not, we can use the latest version of anti-virus software to carry out anti-virus, and generally find the existence of viruses. Of course, there is another possibility that someone maliciously invaded your computer while you were surfing the Internet and implanted a Trojan horse program. In this way, the other party can remotely control all the activities of your computer, including, of course, restarting your computer. For some trojans, it is not easy to remove them, so it is better to reinstall the operating system. 2. System file damage When the system file is damaged, such as KERNEL32.DLL under Win2K and FONTS under Fonts directory under Win98, the system will be forced to restart when it is started. You can do an experiment and try to rename the fonts in the WIN98 directory. When you turn it on again, our computer will start again and again. For this kind of fault, because it can't enter the normal desktop, it can only be installed or reinstalled with cover. 3. Timing software or task planning software works. If you set a restart or load some working programs in the "Planning Taskbar", the computer will start again. In this case, we can open the "startup" item, check whether there are unfamiliar execution files or other scheduled working procedures, and then filter them before starting the inspection. Of course, we can also directly enter the "Msconfig" command in "Run" to select the startup item. Second, hardware 1. The power supply voltage is unstable. The working voltage range of the switching power supply of a general household computer is 170V-240 V. When the mains voltage is lower than 170V, the computer will automatically restart or shut down. Because we sometimes don't feel the fluctuation of the mains voltage, we will mistakenly think that the computer will automatically restart for no reason. Solution: For areas where the power supply is often unstable, you can buy UPS power supply or 130-260 V wide switching power supply to ensure the stable operation of the computer. 2. The patch cord or power socket has poor quality and poor contact. Most power strips on the market are of poor quality. Internal contacts are all welded by hand, and acid flux is often used, which will easily lead to open circuit or leakage between live wire and zero wire in future use. Due to manual welding and poor elasticity of the phosphor brass sheet, it is easy to lose elasticity in a short time, resulting in poor contact with the power plug of the host or display, resulting in a large contact resistance, and a large amount of heat will be generated after long-term work, which will be manifested as the restart of the host or the flashing of the black screen of the display. Another possibility is the wall socket in our home. Most wall sockets are not installed by professionals, so the wiring inside the socket is very irregular. Especially if we often use high-power heaters in these sockets, it is easy to cause internal heating and oxidation to form intermittent power failure, resulting in computer restart or display flashing. Solution: ① Don't try to save money, buy a cheap patch panel. Buy some brand-name patch panels, because they are all automatically installed and crimped by machines and do not need manual welding. ② As to whether it belongs to the problem of virtual connection inside the wall socket, we can try replacing the host with a wall socket to see if there is the same automatic restart problem. 3. It is also common for computers to have insufficient power or poor performance, especially when we add new equipment to the host, such as replacing high-end graphics cards, adding recorders and hard disks, which are easy to appear. When the host computer is working at full speed, such as running a large 3D game, high-speed burning or preparing to read a CD, when it is started, the dual disks will copy data, which may lead to power-off protection and stop output due to instantaneous power shortage. However, when the power supply stops outputting, the load is reduced, and then the power supply is started again. Because the recovery time after protection is very short, the performance given to us is that the host automatically restarts. On the other hand, the switching power supply of the host has poor performance. Although the voltage is stable and within the normal allowable range, due to the excessive harmonic content in its output power supply, it will also lead to frequent shutdown or restart of the host. In this case, we use a multimeter to test its voltage is normal. It is best to change an excellent power supply. Solution: Now replace the high-quality and high-power computer power supply. 4. The power plug of the host switch power supply is loose, with poor contact and not plugged tightly. Most of them will appear on DIY machines. The power cord of the host power supply failed 3C certification and did not match the power socket. When we shake the table or touch the host, the host will automatically restart, usually accompanied by a slight "click" sound. Solution: Replace the high-quality 3C certified power cord. 5. Power supply for motherboard ATX2.

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