Steps to install:
- Transmac programme should be installed.
- Select 'Run as administrator' from the context menu when right-clicking on the icon.
- Once Transmac has been launched, Verify whether your USB Stick is mentioned in the left area.
- If necessary, mount the USB drive in a different slot and restart the application (Transmac). Right-click on the link to your USB disc.
- Make a bootable disc for Mac OS X 10.9 Look for the Mac OS 10.9 file on your hard drive. (You can choose any raw or dmg files)
- Change dmg file to all and you'll be able to see your file.
- Click OK and follow the on-screen instructions. Get BIOS settings by restarting your machine ( F2)
- Switch to AHCI mode,
- Exit the BIOS and save your work.
- To access the Boot menu, press F12 or F10.
- Choose your USB flash drive
Read More: How do I install Mac OS without erasing Windows 10?