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This. Yeah, that's a solid suggestion. Also, double-check that Secure Boot is enabled in the BIOS—it's a sneaky second requirement that can trip you up.

Same here. Yeah, and just a heads up—on some models, you might also need to switch your BIOS from Legacy to UEFI mode before those options even appear. Let me know if that works.

Totally feel your frustration, especially when you've checked all the big boxes! This is a common headache with some Optiplex 7040s, even when they *should* work. Let's try a few free fixes that often get it over the line.

First, double-check your **BIOS version**. Dell released critical updates ...