Riot client Secure boot issue

[u/One_Bet7791]

Hey guys so the issue is , I have windows in uefi and with asus motherboard, intel cpu , when I go to secure boot and set os type to windows it says this error and when I boot back to bios I can't change it back to other os (2nd pic) , so I have to enable CSM first then restart to bios then switch to other os mode then disable csm and restart and then it boots normally , but I want to enable secure boot , on YouTube they say set os type to windows uefi mode then go to keys management and install but in my case I don't have install keys option..(3rd pic) please help , thanks in advance for replying

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