Got notification in the right hand corner mentioning that secure boot is setup incorrectly and disable, SecureBoot isn't configured correctly after Win 8.1 First update. Please try above steps:
- Swipe the charms bar
- Touch search
- Key in gpedit.msc
- Touch gpedit
- Then under Computer Configuration
- Touch Administrative templates
- Then All settings on the right window pane
- Then scroll down to use enhanced boot configuration data validation profile
- Touch enabled option and touch apply option
- Exit and Restart
