format drive

@Feartech Hey there, I have a working windows and a broken Mac OS without a recovery option or a bootable USB flash drive, how can I properly format the drive before a new fresh install? How do I even do this? If I do this via Windows is it ok?

So I am missing my EFI partition... After some reading I figured this is because I did not format the drive to GPUID. I did not because I have a 4 TB SSD, with Windows on it and another partition with MacOS on it. Therefore I cannot format the drive. Is there a way to work around this?

Hello I have created a USB installer with unibeast with legacy boot with was working but when I format har drive when installing it formating drive was stuck on it and show error but on same drive sierra install issue with high sierra and Mojave I buy new drive but again drive not format I have...

How's it going everyone? I have a problem with High Sierra, I need to partition my HDD but i can't. It's a Hitachi HTS547575A9E384 750 GB 5400 rpm. When I use Disk Utility, I resize my boot volume and I create a new APFS volume. When I start the process everything works okay until the part that...

I would appreciate if you help to assist me!! I created bootable MBR USB for Mavericks and one another Uefi clover disk for El Capitan..Now we cannot reuse or format both USBs..I searched on internet throughout a year..couldn't find solutions yet.tried codes on terminal it's says permission...

Hello all, I searched through the forums and read golden builds and recent posts, but I am still a little uncertain about a couple of things. I want to dual boot, with OSX as the main OS and with the option of holding down a key during startup to boot into Win7. With the OS's on different...