Create Yosemite install disk on a Windows machine I have a 2009 Mac with a new blank SSD. I have a Snow Leopard install disk but it doesn't work (it was a replacement installer disk and has never worked), so I don't have a working OS X install.

I do have a Windows 7 machine.

How should I go about installing Yosemite? All instructions I can find require OS X at some point in the process. I can't even download it from the store unless I'm on a mac.
It is not possible without access to an OSX machine. If you have the old disk from your Mac it might have the recovery partition on it. If you can put it back in, boot while holding down command-R. You can put the SSD in an external enclosure and use the recovery partition to install Yosemite on to it.

Maybe if you go to an Apple Store and ask nicely they will let you install Yosemite onto the SSD? Or at least get the installer onto a USB stick.