Please, everyone, why did my antivirus software automatically delete 20 after it was turned on?

1) Search for **Windows Optimizer (Free) item-by-item cleanup settings, focusing on the entries in "Junk Cleanup" and "Extended System", as well as the entries in "Management Tools" to clear, block plug-ins, smart delete, IE repair, etc. 2) Click on Microsoft China to enter the "Center", which contains the "Windows Malware Removal Tool" If there is villain software, you can also hack it to death.

Because you get a malignant virus, that thing will automatically disable or even remove the mainstream antivirus software now.

If you don't know how to delete it manually, you'll have to reinstall the system.

Reason for automatic shutdown of the computer:

The computer system is poisoned or malware, the CPU fan is broken, the CPU temperature is too high, the temperature is overheated, the power supply is broken, or new hardware is added, the power supply is insufficient, the graphics card or graphics card fan is broken, the motherboard is broken, the motherboard core is overheated, etc., the computer will automatically shut down.

Auto Shutdown Troubleshooting Methods:

1. There may be a problem with the BIOS settings, enter the BIOS to restore the default settings or take out the battery of the motherboard, reverse the buckle discharge, and wait for 5 minutes to reverse install it. Purpose: To restore the default values of the BIOS settings and eliminate the automatic reboot or shutdown of the BIOS cooling presets.

2. If the computer shuts down automatically when using a certain application software, the automatic shutdown failure may be caused by this program software, and the program software can be uninstalled.

3. Then check the power supply, the power supply quality is poor, aging or the power is too small, which can not meet the power supply needs of the computer accessories, and the high-power and high-quality power supply can be replaced.

4. Then use the elimination method to check the memory, graphics card, CPU, CPU fan, motherboard, etc.

5. Check the memory, the memory quality is not up to standard, poor heat dissipation, overclocking, mixing and inserting of different brands of memory and the CAS value setting is too low, etc., which can cause the computer to shut down automatically, and the memory parameters can be adjusted accordingly in the BIOS.

6. Check the motherboard, the motherboard aging, capacitor failure or pulp, the motherboard power pins, the motherboard and the chassis backplane short circuit can cause automatic shutdown, you can take the motherboard out of the chassis to check or test, then check whether the CPU fan rotation and the CPU temperature is normal, and then check whether the bottom of the CPU fan heatsink is dry, if it is dry, clean the silicone on the CPU fan, and then recoat the good silicone. If the fan is not normal, replace the CPU fan.

7. Cleaning method: It is a method to eliminate faults by cleaning the dust of the parts in the computer host. Dust is one of the factors that can also cause computer automatic shutdown failures, dust can cause parts aging, pin oxidation, poor contact and short circuit and other failures.

For these faults caused by dust, it is generally more effective to use the cleaning method.

8. The power supply system is unstable, which can also cause the occurrence of automatic shutdown faults, and a UPS backup power supply with voltage stabilization function can be considered.