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Bootcamp not showing as bootable disk on Excessive Sierra

I’ve a MacBook Professional (Retina, 13", Late 2013, 8GB/251GB) on which I’ve had a Bootcamp partition put in with Windows7 for a number of years (most likely since early days, i.e. since 2014). Initially the MBP ran Mavericks OS, which I thereafter have repeatedly up to date to present OS of Excessive Sierra (10.13.6). Booting Home windows has by no means been an issue. Till now. Now it doesn’t present up when booting and urgent Alt/Choice – solely the Macintosh HDD is seen.

Half a yr in the past I did the silly mistake of working down free HDD area to one thing like 10 GB and as individuals may know this isn’t actually appreciated by MacOS. Nonetheless, I used to be in a position to get again to dry land after studying a number of discussion board posts. I’m suspecting that this episode might need been the occasion that screwed up my Bootcamp in some way.

Initially there was a corrupted MBR desk as different posts have handled, e.g. these:

https://discussions.apple.com/thread/252319323?login=true&sortBy=greatest

https://discussions.apple.com/thread/252776981?sortBy=greatest&web page=3

How you can convert a drive from the GPT format to the hybrid GPT/MBR format when utilizing Excessive Sierra (macOS 10.13.2)

I adopted the directions there (utilizing fdisk, not gdisk) and on the face of it, the whole lot appears wonderful – a minimum of in my eyes. MacOS is of a special opinion sadly, so I’m at a lack of what to do now. I present some fundamental display screen pictures under, which hopefully may present clues.

Bootcamp not showing as bootable disk on Excessive Sierra

I do discover now that the gpt command exhibits "Suspicious MBR at sector 0" now – not sure if that truly was there earlier at this time.

enter image description here

Trying on the MBR it appears like this

enter image description here

The Bootcamp disk is offered in all the following conditions:

  1. Disk utility in MacOS
  2. Finder (exhibiting all particular person information as effectively, and I may even copy information to Mac folders)
  3. In restoration mode (command+R) as a selection of bootable disk (won’t boot although)
  4. Startup Disk (in System Preferences)

So, the fundamental drawback is that it appears to be nearly accurately configured, however not totally, and the disk is simply not exhibiting up whereas booting (and urgent Alt/Choice).


UPDATE 09.03.2024 10.41 CET
So as to exhaust all alternate options I did strive with the Win7 boot drive once more after having reset each SMC and NVRAM, however unresponsive keyboard and observe pad remained.

I thereafter pursued the Win10 avenue as a substitute and downloaded a "recent" x64 model (ISO) from Microsoft’s homepage and began making a bootable flash drive (measurement 32 GB), utilizing Boot Camp Assistant (BCA), from that ISO. Nonetheless, BCA throws me an error message throughout the course of some 15-20 minutes in, see under.
enter image description here

I seemed into this subject, which in fact others have encountered. I attempted the eject advice, however there was not any mountings to eject in my case actually, and the one which popped up in Disk Utility couldn’t be ejected because it was in use for the BCA course of.

Horrible wall of issues this has was 🙂


UPDATE 25.05.2024 14.23 CET
I used to be in a position to copy all information I deemed essential to salvage from the Bootcamp partition, so I took the choice to only erase/restore the partition and repurpose it as Mac area after that.

Simply as you identified, David Anderson, it was a too advanced a maneuver, particularly since I used to be in a position to salvage the information of curiosity (I hope).
However, I very a lot recognize the help alongside the way in which, which gave me some new insights in addition to dragged me to a choice level.
Many thanks!

…and hopefully this submit could also be of utilization to someone else sooner or later.

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