The computer turns on and the scrollbar appears and then restarts

In the past, there was such a shockwave virus, the "shockwave" virus, and when it attacked, it would also prompt the system to automatically start after 60 seconds. In fact, back in the days of DOS, there were quite a few viruses that were able to automatically restart your computer. We can use the latest version of antivirus software for antivirus, and viruses are usually found to be present.

In addition to that virus, hardware issues can also be the cause of frequent system reboots.

When the system files are corrupted, such as the fonts under win2k and the win98 fonts directory, the basic files under the system are corrupted, and the system will not be able to complete the initialization and be forced to restart when it starts. You can do an experiment and try to change the name of the font library "fonts" in the win98 directory. When you turn it on again, our computer starts up repeatedly.

For this kind of failure, because there is no access to the normal desktop, you can only overwrite the installation or reinstall.

If you set up in the Schedule Taskbar to restart or load certain workers, the computer will start up again when the scheduled time comes. In this case, we can open the "startup" item, check whether there are any executable files or other scheduled workers that we are not familiar with, block them and then boot them to check. Of course, we can also directly enter the "msconfig" command in "Run" to select the startup item.

The mains voltage is unstable; For areas where the power supply is often unstable, we can purchase a UPS power supply or a wide switching power supply of 130 260V to ensure the stable operation of the computer. There are also poor quality plug strips or power outlets, poor contact.

There is also a situation that the performance of the host switching power supply is poor, although the voltage is stable and within the normal allowable range, but because the harmonic content in the output power supply is too large, it will also cause the host to crash or restart frequently. In this case, it is normal for us to use a multimeter to test its voltage, and it is best to replace it with a good power supply.

Solution: Replace it with a high-quality high-power computer power supply.

When some of the internal functional circuits of the CPU are damaged, and when the second-level cache is damaged, the computer can also start, and even enter the normal desktop for normal operation, but when a special function is performed, it will restart or crash, such as drawing table, VCD, playing games, etc.

Solution: Try to mask the L2 cache (L2) or L1 cache (L1) in the CMOS to see if the host can run normally; It's not just a good CPU to replace and exclude. If it works normally after blocking, it can still be used improvised, although it is slower, but it will save money.

Format all the partitions and reinstall them, there may be Trojans.

According to your description, it should be a problem with the operating system, just follow 4; If it doesn't work, it may be a problem on the motherboard, first check the battery of the motherboard; Then check the memory chip, the most common failure is that the content in the EPROM is damaged or lost, and the re-flashing BIOS is invalid, and the chip can only be replaced;

The computer screen is black, or the computer freezes, the operation is stuck and other faults are checked according to the following items:

1. First of all. Check the power supply; 220V AC power supply (plug and socket are usually called); Then check the output voltage of the computer power supply (desktop check the fan of the power supply, notebook can listen carefully to see if the CPU and graphics card fans in the machine are rotating);

2. See if the computer can "self-test"; If you can self-test, you can generally reinstall the operating system;

3. If it is a black screen, focus on the inspection part (this is all and all the reasons for the black screen of the computer):

cpu；Mainboard; Memory; Graphics; Display (

desktop monitors); Power supply (Yes.)

output, but the supply voltage is incomplete); and the plug-in parts and connecting wires of the above-mentioned parts;

4. Check and remove viruses, reset the BIOS, and reinstall the operating system.

Thank you for adopting.

It is possible that the CPU fan is not working and the CPU temperature is overheating.

It is very likely that the system or drive files are wrong or missing, and it is recommended to reinstall the system.

1. Open the case and press the hard disk cable, 2. There are bad sectors in the hard disk boot area (especially the "Maxtor" brand), try to install the system within 1-3 days after this situation occurs, and repair the hard disk.

If your computer supports USB flash drive boot, it is recommended that you go online to the next USB flash drive system maintenance tool

Or the PE system of the USB flash drive boots from the USB flash drive and repairs the system

Most of the time it's caused by the loss of system files!!

Boot to the scrollbar, how to understand this sentence?

Keep holding F8 when you turn on the device to see if you can enter safe mode.

It is very likely that the computer is restarted repeatedly because of the computer's settings, and there is no way to determine what the problem is

The recommended workaround is as follows:

1. Keep holding down F8 when you turn on the computer, after seeing the menu, you can use the upper and lower keys of the keyboard to adjust and select the option of "Last Correct Configuration", and then press Enter to enter the system.

2. If the above method cannot be used for the system, please put in the system disc first, then enter the BIOS to set the disc as the preferred boot item, press F10 to save, and click Yes to confirm.

3. After booting from the system CD, select Repair Installation when installing the system.

4. If the repair installation is not able to boot the system. Then try reinstalling the system.

5. If reinstalling the system is also invalid, consider the hardware problem, check with the replacement method: power supply, memory, motherboard, etc., and replace the hardware after confirming the hardware problem.

If the hardware has not changed, it will be reinstalled to save trouble.

It's poisoned, reboot.