Transfer SC2 Installation from Mac OSX to PC

Yes. You will have to download some things, however.

First, download the windows installer from blizzard.net. Let it start up and initialize the install - Once it gets to 1% of the actual download, you can close it.

Once it's closed, copy all of the data files from the OS X install over the newly created datafiles in the windows install. This only matters for files that have the same name and folder structure, so drag & drop is usually sufficient as long as the folders are merged. Tell it 'yes' on overwriting any files.

Start the installer back up, and let it rescan and continue the install. It won't be 100% done, but it should be very close. Just let it finish downloading the last bit from the internet.

This method works for SC2, WoW, and D3, and it works both ways. I use it frequently when I have an up-to-date blizzard game on my windows desktop, and need to make a copy on my mac book pro for when I travel. Mind if you're using OS X to do the copy, because it likes to replace folders instead of merging them when they have the same name.

There is no way to make the actual code of the client work 100% on another operating system, but this will save you the bulk of the download.