To find the BOOTCAMP partition, use the scroll bar on the right and scroll down to make the BOOTCAMP partition appears in the list. Select it and click Next to proceed to the next step in the Windows install process.
Macs with Fusion drive: How to find BOOTCAMP partition in Windows installer
After running the Boot Camp Assistant, partitioning the Fusion drive, and starting up in the Windows installer, you might not be able to find the BOOTCAMP partition in the list of available partitions to install Windows on.
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