Hi,
In orde to create a bootable installer I have to reformate my drive. This drive has 2 partitions (mac and windows) but only one is shown in the Disk Utility Program. If I remove this partition in order to format to GUID-partition, will this effect the "windows partition" of my external hard drive?
Hope this makes sense.
Thank you
MacBook Air 13″, OS X 10.11
You need to use an external drive for the macOS installer. If the external drive already has a GUID partition, then you just need to erase the one partition/volume. However, if the USB drive does not have a GUID partition, then you will need to erase the whole physical drive. Make sure any data on both partitions is backed up before you attempt to erase the partition/volume or drive. It would be safer if you just used a USB stick instead.
You need to use an external drive for the macOS installer. If the external drive already has a GUID partition, then you just need to erase the one partition/volume. However, if the USB drive does not have a GUID partition, then you will need to erase the whole physical drive. Make sure any data on both partitions is backed up before you attempt to erase the partition/volume or drive. It would be safer if you just used a USB stick instead.
Delete disk consequences partitions
