Unzip the file on your PC and run the program. How to Format an External Drive Using WD Quick Formatter You will need a PC with windows.įrom the PC download the ‘WD Quick Formatter For Windows’ (maybe you can actually download the mac version on your mac, but in my case I have Sierra and the software is not supported, that is why I had to use a PC)ĭownload the software from this WD article: Long story short, I figured out how to fix it. MediaKit reports not enough space on device for requested operation. Using the Disk Utility I erase the disk as the instructions indicate, didn’t work, I got a message: I just bought an external disk and since I own a mac I also came to this site to format the disk so I’m able to use it in my mac.