Solution for non-reflected keyboard lights and keyboard lights

[Switch] the keyboard light does not reflect the solution. The keyboard light reflects the solution.

1. Check the status indicator light and try to enter a number, or a letter or numlk (number locked). If it is invalid, the learning scope of this tutorial is as follows:

2. (The demo system is Windows 8.1 Professional Edition) 1. Right-click win and select r (run)

3.input regedit.exe (Registry Manager) and press enter to Open Registry Manager.

4. Enter HKEY_LOCAL_MACHINE

5. Go to SYSTEM

6. Locate CurrentControlSet.

7. Go to Control

8. Enter the Class

9. Find {4D36E96B-E325-11CE-BFC1-08002BE10318} and double-click it.

10. Find the UpperFilters item and right-click to delete it.

 

 

11. Restart

 

12. After startup, go to {4D36E96B-E325-11CE-BFC1-08002BE10318}

 

13. Right-click New, multi-string value

 

14. rename it UpperFilters

15. Change the data to kbdclass.

 

Original article: http://jingyan.baidu.com/article/84b4f565cf5dfe60f6da32f5.html