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macOS preservation during Windows 10 installation via Boot Camp Assistant

If I install Windows 10 using the built-in Boot Camp Assistant utility, will Mac OS be deleted due to disk partitioning?

P.S. In general, when creating a backup copy, does Time Machine save files and Mac OS itself, or only files?

[Re-Titled by Moderator]

MacBook Pro 16″, macOS 15.2

Posted on Jan 7, 2025 01:23 AM

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2 replies

Level 10

178,872 points

Jan 7, 2025 05:49 AM in response to MaxTrue

if you follow the guides no,

Install Windows 10 on your Mac with Boot Camp Assistant - Apple Support

one of the first steps is to resize the macOS partition making unpartitioned space which will get a windows partition

more

install windows in bootcamp - Google

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Level 9

66,758 points

Jan 7, 2025 06:28 PM in response to MaxTrue

Time Machine only backs up the "/Users" folder and system settings (and I believe the third party software) since macOS 10.15+ is now on a read-only volume.....macOS 11.x+ is also on a signed & sealed volume that cannot be modified at all.

Back up your Mac with Time Machine - Apple Support

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macOS preservation during Windows 10 installation via Boot Camp Assistant

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