Go to your Halo: The Master Chief Collection and right click.
Then go to Manage then in there will be Browse local files.
Now the file "haloreach.dll' is in your halo reach folder. BACK that UP or just re-name it to whatever you like (haloreach-backup.dll)
then when youre done go into MCC\Binaries\Win64 and back up all the files in there because they are the files that get replaced.
The Steam_api64.dll Does not get Replaced at all so that file can stay where it is with this work around patch.
Fix from https://www.nexusmods.com/halothemasterchiefcollection/mods/357?tab=description
Then go to Manage then in there will be Browse local files.
Now the file "haloreach.dll' is in your halo reach folder. BACK that UP or just re-name it to whatever you like (haloreach-backup.dll)
then when youre done go into MCC\Binaries\Win64 and back up all the files in there because they are the files that get replaced.
The Steam_api64.dll Does not get Replaced at all so that file can stay where it is with this work around patch.
Fix from https://www.nexusmods.com/halothemasterchiefcollection/mods/357?tab=description