Restore UEFI Bios in Windows 10 and disable wireless network card in BIOS

I have a Windows 10 PC (Acer R3 Aspire laptop) which was working fine, and then I wanted to get into the BIOS , but into the Win7 style BIOS, instead of the UEFI one.  So when I changed to go into the old bios, now it gives an error message upon boot: "PXE-M0F: Existing PXE ROM.  no bootable device -- insert boot disk and press any key"

(a) How do I restore the UEFI bios so that it'll work?
(b) how do I disable the wireless network card from the BIOS (the reason why I wanted to go into the classic bios)?

thx
enduranceAsked:
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pgm554Connect With a Mentor Commented:
Press the F2 key to enter computer's BIOS Setup during Power-On Self-Test, or POST, process while the Acer logo is being displayed.
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pgm554Commented:
Try resetting the bios back to it's factory defaults.
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enduranceAuthor Commented:
how do I do that, it doesn't let me into windows, stopping at boot with the msg in the OP
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enduranceAuthor Commented:
thanks - that restored my PC, I'll write a separate Q for the Q of disabling the network adapter from BIOS
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