how to install windows 7 on mac using bootcamp

Loosing 20GB does not sound as much, but on my MacBookAir SSD every GB is valuable, maybe somebody has a good idea to save this inert partition, without loosing the access to the external Win7 partition. If this don't work, You'll need a USB drive. Try installing Windows on the bootcamp partition. If it works reboot and create a new Bootcamp partition.

I suppose this external Win7 partition will not work on another Thunderbolt Mac without doing the complete mumbo jumbo (not tested yet). Here might be a solution : Create a new partition (at least 8Gig) Copy the iso on it. boot camp for windows 7 will add extra partitions to your disk that may trip you up later if you ever want to re-size them.

I have installed Win7 on a external Thunderbolt GoFlex Drive using BootCamp as described, it works, but you may not delete the minimal 20GB Bootcamp Technically you are right, but if I start the Win7 installer directly without using Bootcamp, I am not allowed to install it on any partition (independent of partition map, why? I do not know)Īs further info, I was not able to install Win7 onto a GUID partitioned disc, only by deleting the small 200MB Efi Partition you can produce a new Win7 installable partition, but this becomes then Masterblock true, but once you delete the internal Bootcamp partition the external Win7 is not bootable, even if you can and do select it from the startup menu it does not boot anymore.įurthermore, repartitioning the internal drive with bootcamp does not make the external drive accessible again, I suspect there is an entry in the EFI partition which is configured by the Bootcamp Assistant. No MBP here but on the Mac Mini I use an older OS that supports Windows 7 and use external SSD via USB3 or Thunderbolt to run all the other mac OS versions including Mojave.

How to install windows 7 on mac using bootcamp