PC HALO: **** not installed, every single title.

PC version Windows Store. How about a free month of Game Pass Ultimate for every day this goes unfixed? Many tickets have been submitted and SILENCE as the reply. I’ve already wasted what would be several years of subscription, if you had to pay me for the time wasted trying to get this to run. Thrashing my SSD with a TB of garbage.
The hundreds of GB of data downloaded over and over… just wasted… like it’s free. Wow.

This appears to be an issue at the moment. Until it’s raised as a known issue by 343 please makes sure and file a support ticket on the Halo Support site.

For the moment you can follow this topic for updates: