I adopted the directions given within the linked reply and was not in a position to reproduce the issue described within the posted query. The Home windows model and flash drive used are given beneath.
- OS: Home windows 11 Professional (Model 22H2)
- Flash Drive: Micro Heart USB3.0 16GB
When holding down the Possibility key at startup, the flash drive appeared on the Mac Startup Supervisor menu with the given label and icon for the next check Macs. In all three instances, the Mac was in a position to efficiently boot from the flash drive.
| Mac | Identifier | Label | Icon |
|---|---|---|---|
| iMac (20-inch, Mid 2007) | iMac7,1 | Set up El Capitan | Default Exterior Drive |
| iMac (21.5-inch, Mid 2011) | iMac12,1 | Set up El Capitan | Default Exterior Drive |
| iMac (21.5-inch, Late 2013) | iMac14,3 | Set up El Capitan | Picture from .VolumeIcon.icns |
I did encounter the next situation when utilizing the 2013 iMac to check. The flash drive didn’t seem on the Mac Startup Supervisor when one other bootable USB SSD was additionally plugged in.
Various Resolution
Attempt utilizing Home windows to create a Mountain Lion USB installer. The directions are a lot easier.
Notice: I did not want to vary the Apple Partition Map (APM) to a GUID Partition Desk (GPT).
When holding down the Possibility key at startup, the flash drive appeared on the Mac Startup Supervisor menu with the given label and icon for the next check Macs. The 2007 and 2011 iMacs had been in a position to efficiently boot from the flash drive. The 2013 iMac wouldn’t boot and halted with a prohibited signal exhibiting on the display. I assume the 2013 iMac is new sufficient to be incompatible with Mountain Lion launch offered by Apple.
| Mac | Identifier | Label | Icon |
|---|---|---|---|
| iMac (20-inch, Mid 2007) | iMac7,1 | Mac OS X | Default Exterior Drive |
| iMac (21.5-inch, Mid 2011) | iMac12,1 | Mac OS X | Default Exterior Drive |
| iMac (21.5-inch, Late 2013) | iMac14,3 | Mac OS X | Default Exterior Drive |
As soon as Mountain Lion is put in in your Mac, you might then improve to El Capitan.