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Stuck at 99%
#7
Yes, I am familiar with option-booting the Mac.  I have tried multiple times holding the option key on restart, but the iMac still immediately shows the Apple logo and starts loading MacOS.  I also performed both a SMC and PRAM reset.

Here is the flash drive I am using in case you know it does not work:  https://smile.amazon.com/gp/product/B078...UTF8&psc=1

I also attached a screenshot of the flash drive to show how the mac sees it.
   

I also tried VHD and Legacy.
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Messages In This Thread
Stuck at 99% - by modernmagic - 03-16-2021, 10:49 AM
RE: Stuck at 99% - by admin - 03-16-2021, 03:43 PM
RE: Stuck at 99% - by modernmagic - 03-17-2021, 02:49 AM
RE: Stuck at 99% - by admin - 03-17-2021, 02:07 PM
RE: Stuck at 99% - by modernmagic - 03-17-2021, 03:26 PM
RE: Stuck at 99% - by admin - 03-17-2021, 05:43 PM
RE: Stuck at 99% - by modernmagic - 03-18-2021, 06:14 AM
RE: Stuck at 99% - by admin - 03-19-2021, 06:40 PM
RE: Stuck at 99% - by modernmagic - 03-20-2021, 05:04 AM
RE: Stuck at 99% - by admin - 03-20-2021, 05:08 PM

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