I would write OS X on a USB stick and boot from it.
You will need:
- A working PC, which I'm assuming runs some version of Windows.
- A USB stick.
Follow these steps:
- First, get a
.dmg
of the OS X's version you need. - Download the 15-days trial version of TransMac.
- Backup any data from the USB stick. You are going to erase it entirely.
- Launch TransMac, locate the stick, right-click on it and choose "Restore with Disk Image".
- Locate the
.dmg
image you downloaded and select it as the source. - Once finished, push the stick in your Mac.
- Power it and keep pressing the
alt
key until some icon pops up. - If you really erased the entire disk, there should be just one, and should be named something like "OS X Install".