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MacOs HD (System) lost after attempting to inst...

Hi guys

U have a macbook pro mid 2012 hdd replaced with a 256 GB ssd. I launch bootcamp and prepared a usb with the Windows ISO, than I created a 50 GB bootcamp partition for Windows10. The machine restarted and I started following the steps. After accepting the terms I choosed advanced to perform a new install. At that moment Windows told that the MBR partition is not supported. I launched DOS and cleaned than converted the partition from MBR to GPT as advised on a YouTube video. After rebooting I noticed the the efi and the ssd HD are lost and couldn't boot on macos Sierra. I'm afraid to lost all my data I didn't made a backup. Is there a solution to recover the partition ?

Thanks for your support

最后更新：2017-08-24 03:06:57

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