1. install primo ramdisk. Open the program, and create a new RAMDISK. A ramdisk is a storage partition you're creating on your Ram stick. Like a disk on your ram. We are going to put the CEMU program here so that we can run the game much faster. Create a new one with the icon in the top left- you'll wanna give it at least a gig of space. Make sure it's a FAT32 "DIRECT-IO" disk. Mash 'next', you should find a new drive on your PC called "Z:" unless you changed it.
2. Install cheat engine, if you haven't already. Start it up.
3. Unzip Cemu to the Z: drive (our new RAMDISK).
4. If you have like 64+ gigs of ram, you can also move your copy of BOTW to this disk. If not, skip ahead.
5. Start cemu from your Z: drive with admin privaleges. In the top left, click "options" and go to "input settings". connect your favorite game controller and map all the functions of the wii-u gamepad to your new controller. once you're ready, hit "file", "Load", find your copy of BOTW.
You should be in the game. Great!
6. Go to CheatEngine, click the bordered desktop icon in the top left of the window. Select the Cemu process - it should be near the bottom of the list and look something like "000c3ff-Cemu.exe". once it is selected, Tick the box labeled "enable speedhacks" in your cemu window, and set this to somewhere between 1-5 depending on the scene in the game. I'd recommend also going into cheatengine, and selecting "edit, settings" to set a hotkey on your keyboard for "speedhack speed +" and "speedhack speed -" as well as presets.
Once all that's done, you can return to the game.
Start up the game as normal and play through the tutorial section until you feel you've enjoyed enough of it. By now you will have noticed a couple of bugs but otherwise the game runs as normal. Well, you can't progress past the two tutorial shrines for your magnet / stasis powers, because those don't work. So go ahead and quit the game, and,
7. Find that BOTW save you downloaded earlier. extract the folders contents to your CEMU install, and then place the in folder "HLCm01/emulatorsaves/ (something like e45f585 or dg34904)" then rename the file to the parent folders' name, unless it already has the same name. when you reload the game, it should load up these other saves, which place you right after the shrines you just got to what you can't do.
REMEMBER WHERE THESE SAVES ARE BECAUSE RAMDISK IS RUNNING IN RAM! If you shut down or restart your computer that shit is GONE!
If you are running the game out of ramdisk, regularly back up this emulatorsaves folder to somewhere on your regular drive
If you have an SSD of sufficient speed, you really don't need to worry about RAMDISK, though it does increase speed a lot it's not vital.
enjoy playing the game! It's a mess in cemu until the release next week but god damn me if I've not put 20+ hours into this mess