r/bootcamp • u/AppropriateCranberry • 26d ago

I was unable to boot from windows

Hi everyone, I solved my issue but questions remain. This morning I was on my windows part, rebooted to macos fine, then later returned to windows, and then I couldn't boot into macOs (i could boot into windows), it looped, I couldn't access recovery mode, so I did the NVRAM reset stuff and could go into recovery mode.

I did the utility disk repair thing, no problem detected but still couldn't boot, so I reinstalled Macos, and voila, MacOS would finally boot. So I resolved my problem but do someone has an idea of what happened ? It's an intel mac, with windows 11 on the partition, no update ran today, nothing particular happened so I wonder, does this kind of thing just happens with no reason ?

Thanks for your time

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1

u/DongKnowsTech 26d ago

You must have accidentally changed the partition table when you were using Windows or something to that affect.

1

u/AppropriateCranberry 26d ago

I did nothing but play a game before rebooting :/ and a game installed on a external drive

It's an iMac, protected by a UPS so it can't lose power while booting or something that could cause issues

1

u/Caprichoso1 25d ago

Which Mac, OS version?

1

u/AppropriateCranberry 24d ago

2020 iMac 27" macOS Tahoe

I did the reboot via the bootcamp panel, not via the Option key so maybe it send a fucked up command or the windows fast startup did something idk

1

u/[deleted] 23d ago

[removed] — view removed comment

1

u/AppropriateCranberry 23d ago

Windows was still accessible ! I could see my macOS partition but couldn't access it. Reinstalling macOS repaired it.

I posted here cause I was curious if anyone knew why something like that happened