However, some more features of macOS Catalina are listed below. It requires 4 GB of memory and an increase over the 2 GB required by Lion through Mojave. It is also possible to install macOS Catalina on many other older Macintosh machines that is not officially supported by Apple by using a patch file to modify the install image. The systems which support macOS Catalina are listed as under. If you got the new Mac then you will need USB-C type flash drive and the minimum space storage should be 8GB. There are some easy to execute ways and tricks to create a bootable macOS Catalina installer on a USB drive.

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It should have files and folders but especially a setup.exe and an autorun.inf file.

Now, re-plug the USB drive and check its contents.

Once it's complete, it will output records in/out and bytes transferred.

Be patient! (You can press Ctrl+T to see the bytes transferred so far.)

The process will start but there will be no output for a while.

Just drag/drop it on terminal after if= and it will print the full path.

/path/to/win-iso-file is the full path of the ISO image.

Sudo dd if=/path/to/win-iso-file of=/dev/disk2 bs=1m It should print something like this: Unmount of all volumes on disk2 was successful.

Then type command: diskutil unmountDisk /dev/disk2.

Open Terminal and run command: diskutil listįrom the output, find out the name of the USB drive.

(This is the one used for Windows partitions.)

Select Master Boot Record for the Scheme.

(If your drive is above 32GB, you might need to select ExFAT instead.)

CAUTION: Make sure you select the correct drive! Then click erase.

Plug it in and format/erase it using Disk Utility (under Applications/Utilities).

Your USB flash drive should have at least 8GB.

This is how you do it - without BootCamp:

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