Unfortunately, you need to use the Windows Store to get it.
edit: Actually, I just checked an apparently you can download the free apps from the store without logging in now. I tried to do this a very long time ago and skipped because it wanted a Microsoft account login, so I left. I'm glad they've changed this.
edit: Actually, I just checked an apparently you can download the free apps from the store without logging in now. I tried to do this a very long time ago and skipped because it wanted a Microsoft account login, so I left. I'm glad they've changed this.