1 Copper

Precision 7740 - how switch to legacy?


I want to start acronis from CD but cannot find the option to exit uefi.

What i did: Enter Bios, unchecked secure boot, restart and enter bios again, but

no difference in boot options. Only UEFI-Boot possible.

How can i change to Legacy?



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3 Replies
4 Germanium

Re: Precision 7740 - how switch to legacy?

Welcome to the Dell Community  @coastroller 

Power-on and start tapping the "f12" key.

Does it give you the option to boot from the CD/DVD???

Best regards,


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1 Copper

Re: Precision 7740 - how switch to legacy?


i can use F12, but it shows only UEFI.

So i cannot see the (in this case) Legacy Boot-CD.

I want to be able to Legacy boot for different reasons


How can i switch to Legacy? That is the question

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3 Zinc

Re: Precision 7740 - how switch to legacy?

Hi @coastroller ,

When referring to Dell Precision 7740 Setup and specifications guide - General options, there should be options within Boot Sequence to enable legacy boot.


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