How do you get this game to update? There is nowhere from the store I can update or in the game.
Patches download automatically in the background if you have automatic updates turned on. So you probably already have it if you're not seeing an update in the Store.
The latter. Apparently delta patching isn't supported, and this is what it does:
- Makes a new folder
- Makes a full copy of the game to the new folder
- Fully redownloads the files which change to the new folder
- Deletes the old copy
The final size doesn't really increase, but you do need about 50 gigs free on the hard drive the game resides on while the patch installs.
The Windows Store has supported delta patching since Windows 8 came out. If a patch is this large, it's because those files were actually changed substantially hence requiring them to be redownloaded.
Your description of what happens is also very inaccurate.
Source: I've worked on the Windows team for many years and have worked with this stuff quite a bit.
Here's what actually happens: The app platform looks at what's currently on your PC and compares it to what's on the service. It then requests only the changed files to be downloaded. The bytes get downloaded and installed at the same time, and to reduce redundant storage, the downloaded copy gets deleted as soon as a particular file is done getting installed.
Look at how Gears of War Ultimate Edition is 52GB+ yet its patches were roughly 1-2GB each.