Hocam anakartın MSI ise, bios ekranında secure boot enable yaptıktan sonra standart ayarı costum yapman gerek, sonrasında secure boot u maksimum olarak ayarlamalısın.
Updating your settings with a recent BIOS
- Restart your computer and press the DEL key while your computer is booting
- Open the Settings menu, then click on Security -> Secure Boot
- Set Secure Boot Mode to Custom. Then set Secure Boot Preset to Maximum Security.
- Press F10 or navigate to the Save & Exit screen, click on Yes when asked to save the configuration
Please watch
this video from MSI for troubleshooting any issues.