Why does the Win10 notebook screen suddenly darken?

After using the screen of the Win10 system for a while, it suddenly dims, even dark enough that even videos and pictures cannot be seen clearly. What is going on here? Why does the Win10 notebook screen suddenly darken? Here's why the Win10 notebook screen is dimmed.

There may be three aspects:

First, the graphics problem:

1, re-inserted, clean finger, a fan is normal;

2, update the driver, you can download the driver wizard;

3, no longer, then free replacement during the warranty period.

Second, the connection line problem:

Re-plug, check vga or dvi interface;

Third, the display problem:

1, check whether the electrical outlet power ups. Convenient, it is normal to see on other computers

2, not one-click restore. If the system CD is not prepared, the CD-ROM drive can be used.

3, start the computer press the del button, set the CD to boot in the bios.

4, insert the system disk and then restart, basically complete the steps automatically.

5, no longer, check the system is no virus, it can only be a heat problem. After a long time, you can open the case and carefully clean the dust inside, and add some advanced oil to the fan. The main problem is to reduce the temperature inside the chassis.

The above is the reason and solution for the sudden darkening of the Win10 notebook screen. If your notebook also has a problem that the screen suddenly becomes dark, you can refer to the above method to solve it.