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71015c377ls
Posts: 3 Joined: Fri Jan 02, 2026 7:32 am
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by 71015c377ls Fri Jan 09, 2026 3:35 pm
I had the same problem. I also had to go find the "Clear All Secure Boot Keys" option in the BIOS and reset them before the setting would actually enable. Good luck!
Seoma [Crawler]
Posts: 3 Joined: Sun Dec 21, 2025 5:04 pm
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by Seoma [Crawler] Sat Jan 10, 2026 6:03 pm
+1 Did you also check if your BIOS is in UEFI mode and not Legacy?
ZBD36HFI
Posts: 4 Joined: Sun Dec 28, 2025 5:37 pm
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by ZBD36HFI Sat Jan 10, 2026 7:09 pm
You could also check if there's a newer BIOS version available from Dell's support site, as that sometimes enables the feature. Let me know if that works.
PkUksXC
Posts: 1 Joined: Sat Jan 10, 2026 5:35 pm
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by PkUksXC Sat Jan 10, 2026 7:18 pm
Agreed. I had the same problem. On my Optiplex, I had to switch from RAID to AHCI for SATA operation before the Secure Boot option even appeared.
uCmfdbgVO
Posts: 2 Joined: Fri Jan 02, 2026 11:32 pm
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by uCmfdbgVO Sat Jan 10, 2026 8:32 pm
You could also check if there's a BIOS update available for your specific model, as that sometimes enables the missing Secure Boot option.
LkLHjPddy
Posts: 2 Joined: Thu Dec 25, 2025 8:09 am
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by LkLHjPddy Sun Jan 11, 2026 1:00 pm
Yeah, and after you update the BIOS, you might need to switch the boot mode from Legacy to UEFI first before the Secure Boot option will even appear.