Type the diskpart command and press Enter.

Type cmd in run dialog or open it from the start menu.

Open Command Prompt as an administrator.

In this case, you want to redo the entire process again, but this time use the following steps to use the Diskpart command-line utility on Windows to create the appropriate GPT partition. If the USB flash drive is not working using TransMac, it could be still a partition problem. How to create a GPT partition on a USB flash drive

Built in burner functionality to burn ISO and dmg files directly to CD/DVD/Blu-Ray.

Create, compress, expand and split dmg files.

Save and restore images of disks and flash drives.

Copy files to Mac HFS+ disks and dmg images.

Open Mac APFS/HFS/HFS+ format disk drives, flash drives, CD/DVD/Blu-ray media, HD floppies, dmg, dmgpart, sparsebundle and sparseimage files.

Apple File System (APFS) volume read support.

Now plug the USB drive into Mac computer in order to install, install or upgrade the operating system to the latest version of Mac OS, which can be Sierra or later. It will take a few minutes to complete the process because the Mac Operating System is larger than any other operating system like Windows and LINUX in size. Click Yes to create the macOS USB bootable media. Now browse to the location where the Mac OS system image file is located and click ok to load it. Again from the left sidebar right-click on the USB drive and select restore with disk image. If the formatting is completed successfully, click OK to continue. When it prompts select a name for your USB it doesn’t matter but just do it and click ok. One thing you need to take care of that the USB drive needs in GPT partition in order to work on a Mac computer otherwise it won’t boot. Use your USB drive right-click on it and select format disk format this will format the USB drive so that it can be used to store the Mac OS operating system. Bootable macOS Catalina USB on Windows 10

If you’re using the trial version, wait 15 seconds, and click Run. Open the TransMac, and select Run as administrator. And we are going to tell you something straightforward – backup if things are stored in USB Drive.

Plug the USB drive into your Windows computer that you’ll be using to fix your MacOS. If you like the software and to support the developer you can buy the full version. It’s paid software with a 15-day trial, so you can use it within the time to create a bootable macOS USB flash drive. Download and install TransMac on your Windows PC.

Create usb boot disk windows 10 on mac