install bootcamp from an external drive

Can I put a windows 10 disk image on an external mac formatted drive and have bootcamp install from that as opposed to a thumb drive?

iMac 27″ 5K, macOS 10.15

Posted on Dec 15, 2020 6:29 PM

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1 reply

Loner T

Level 9

59,536 points

Dec 15, 2020 9:09 PM in response to Loran Kary

For Macs, that require an external storage to create the Windows installer, a USB2 Flash drive of 16GB is recommended.

Be aware that macOS High Sierra and older versions do not handle W10 1903 and later ISO files correctly. You can either use an older W10 ISO, or upgrade to macOS Mojave.

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install bootcamp from an external drive

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