KB2902864 solves the Windows 8.1 system prompt "SecureBoot is not properly configured"

Symptom:
After upgrading Win8.1, enter the desktop, the bottom right corner of the desktop will display "SecureBoot is not properly configured". As shown below:

Cause analysis:
Microsoft started with Windows 8 system and introduced a new boot security technology "secureboot"; both "safe boot". Starting from the Windows 8.1 system, the system will automatically detect whether the machine is turned on and the "safe boot" function. If it is not enabled, it will prompt in the lower right corner of the desktop "Secureboot is not configured correctly." ”
Solution:
Scenario 1: Turn on Secureboot in BIOS
Methods:
Knowledge ID: 106425 Lenovo notebook upgrades Windows8 from Windows8, the bottom right corner of the desktop prompts SecureBoot not A properly configured solution.
Scenario 2: Update the Microsoft patch and close the prompt in the lower right corner.
Method: Please download the attached patch or click the Microsoft official website below to download KB2902864 installation.
Microsoft official address: http://support.microsoft.com/kb/2902864