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by 77cfbap
Fri Jan 02, 2026 10:13 pm
Forum: Your first forum
Topic: **Subject: Windows 11 upgrade is a NIGHTMARE** So my old rig (i7-6700k, GTX 106?
Replies: 14
Views: 175

Agreed, and one more thing: after you flip Secure Boot on, you might need to change your boot mode from Legacy/CSM to UEFI in that same BIOS menu.
by 77cfbap
Thu Jan 01, 2026 5:17 pm
Forum: Your first forum
Topic: Ugh, so done with this?
Replies: 14
Views: 117

Re: Ugh, so done with this?

Hey, I totally feel your frustration. That Optiplex 7040 is a solid machine, and it's maddening when a single BIOS setting blocks you. You're right that on some of these business-line models, Dell shipped them with a "Custom" BIOS mode that hides Secure Boot.

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