Lenovo notebook upgrades from Win8 Win8.1, the bottom right corner of the desktop prompts SecureBoot not properly configured.

After upgrading Win8.1, enter the desktop, the bottom right corner of the desktop will display "Not properly configured".

Cause analysis:
Solution:
Two modes of BIOS processing:
BIOS of the first mode:
After setting Secure Boot to Enabled, Secure Boot Status is still off.

Step 1: When the machine restarts to the "Lenovo typeface screen", press the "F2" key or the "Fn+F2" key to enter the BIOS. Select the Security option, select Reset to Setup Mode and hit Enter, select YES and press “Enter & rdquo;;
Step 2: Select Restore Factory Keys and hit Enter, select YES and press “ Car & rdquo; button;
Step 3: Press F9 or FN + F9 to restore the BIOS default settings;
Step 4: Press F10 or FN + F10 to save and exit, do not stop & ldquo; F2 & rdquo; key or & ldquo; The Fn+F2” key enters the BIOS. Check the Secure Boot Status. In this case, you should have changed to Enabled and save and exit.
Step 5: After entering the system, you will find that the “SecureBoot is not correctly configured” displayed in the lower right corner of the desktop. The prompt message disappears.
The second mode BIOS:
The Secure Boot Status is off under the Security menu and cannot be changed. As shown below:

Step 1: When the machine restarts to the “Lenovo typeface screen”, press the “F2” key or the “Fn+F2” key to enter the BIOS. Select the Boot menu item and select the Boot Mode option as UEFI mode;
Step 2: Select the Exit menu item and select the OS Optimized Defaults option as WIN8 64bit mode;
Step 3: Press F10 or FN+F10 Save and exit, do not stop the "F2" key or "Fn + F2" key to enter the BIOS;
Step 4: At this time, check the Security Boot Status under the Security menu to open the state;
< Br>Step 5: After entering the system, you will find that “SecureBoot is not properly configured” displayed in the lower right corner of the desktop. The prompt message disappears.