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question mark folder

i have imac 2011 and it was only windows installed on it and i wanted to install mac os,

i used windows command to completely clean and format hard drive and convert to gpt and prepare bootable usb flash using transmac,

but now the question mark folder appears and nothing seems to work, i tried everything, command+r

option and all the shortcut keys

help me out here

how can i fix it ?

gpt formatted hdd is the problem ?!

how can i fix this ?!?!?!?

Posted on Feb 3, 2022 1:51 AM

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Question marked as Best reply

Posted on Feb 3, 2022 3:59 AM

Did you use the disk utility program to format your drive as "Mac OS Extended (Journaled)" ?


Also take a look at the troubleshooting in this article:

If your Mac starts up to a question mark - Apple Support

4 replies

question mark folder

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