Bootcamp usb not seeing bootcamp partition

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repoman1966 Author

Level 1

4 points

Bootcamp usb not seeing bootcamp partition

I’ve just installed Big Sur from scratch using a bootable usb.

I’m trying to install windows.

Have downloaded windows 10 iso from Microsoft.
Bootcamp setup sees the windows 10 iso and creates the usb and downloads the bootcamp windows drivers.
I create the bootcamp partition,
laptop reboots a couple of times and I can see the usb is being accessed but after a couple of attempts the laptop reboots back into Big Sur.

Posted on Nov 19, 2020 1:55 PM

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Answer 1

Loner T

Level 9

59,536 points

Nov 20, 2020 9:08 AM in response to repoman1966

What is the year/model of your Mac (do not post the serial number)?

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Answer 2

repoman1966 Author

Level 1

4 points

Nov 20, 2020 9:24 AM in response to Loner T

Hi. It’s a late 2013 MacBook Pro

However, I now have windows installed. It appears with Big Sur once I’ve got bootcamp assistant to create my bootcamp usb and bootcamp partition, after it reboots, I need to keep finger on the alt button and select EFI boot for it to boot up from the USB.

From then on it’s the normal installation of windows.

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Answer 3

repoman1966 Author

Level 1

4 points

Nov 20, 2020 3:59 AM in response to repoman1966

When you restart and keep the alt button pressed down to give you the different boot options, clicking the EFI boot option allows the windows installer on the usb to be seen and to boot up into the installation process

clicking on the windows icon first instead of EFI causes a no boot disk error.

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Answer 4

Loner T

Level 9

59,536 points

Nov 21, 2020 6:41 AM in response to repoman1966

Excellent!

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Bootcamp usb not seeing bootcamp partition

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