Okay, here's the temporary workaround for Intel HD users that cannot get the game to launch even while using the newest drivers.
Obviously this comes with no warranty and could cause issues for you. That said, I think it's unlikely.
- Install the newest intel drivers.
- Restart your computer after installing the drivers.
- Open regedit (press the windows key + r, type regedit, press enter).
- Press f3. Type in "pc_release_major" (no quotes). Press enter.
- Press enter to edit the "pc_release_major" key. Check the "decimal" box. Change it to 15 if it isn't 15 already.
- Press ok. Go to the "pc_release_minor" key right below and double click it. Change it to 45 (decimal).
- Go above in the list to the "DriverVersion" key. Change it to "21.20.16.4590" (no quotes).
After that, it should work instantly.
Once Ubisoft fixes this silly issue, you should probably just reinstall the drivers again to fix the version number.
Thanks for the help, BRolf02 and Gemini_Iceland.