does a osx reinstall affect bootcamp?

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freaka.nl Author

Level 1

10 points

does a osx reinstall affect bootcamp?

Hi guys,

Im having some problems with my osx and actually wanna try reinstall osx from a backup.

The only problem that i might have is that my harddisk is split into 2 partitions (windows and osx).

And i'm afraid i will lose the partition info when reinstalling osx.

can somebody tell me how this works in general and if there's a possibility to lose either the whole bootcamp partition or the partition information?

And what would be the best way to do the re-install?

Thanks in advance!

Jasper

MacBook Pro (15-inch, Late 2016), iOS 10.1.1, null

Posted on May 23, 2017 5:43 AM

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Answer 1

Loner T

Level 9

59,536 points

Jun 11, 2017 8:35 AM in response to freaka.nl

On a 2014 or older Mac, if Windows is installed using a Hybrid MBR, some versions of OS X re-initialize the MBR, so do not. On later Macs, you may see issues if the EFI partition is rebuilt/modified during OS X installation.

Back up OS X, Windows, and use GPT Fdisk to backup your partition table using the 'b' command. You should also create a Windows System Recovery point for additional safety.

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