Launch csm can't change how to solve it?

Recently, many users are reporting that launch csm cannot be changed. What is going on? In fact, this may be caused by the opening of Secure Boot Control. How to solve this problem? For this problem, the following small series for everyone to introduce the solution that launch csm can not be changed.

launch csm can not change Solution:

1, first in the bios, switch to the Security tab, select Secure Boot Control you can set it to Disabled. As shown in FIG:

2, then it is possible to return to Launch CSM, and press Enter, see Launch CSM can normally opened. As shown in FIG:

3, press the save settings f10. As shown:

These are the solutions launch csm small as we introduce can not be changed. If you encounter the Launch csm option that cannot be changed in gray, you can follow the steps above.